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Urethral Prolapse (Prolapse of Parts of the Urethral Mucosa) in Dogs

Occurrence: rarer
Location of illness: Abdomen/pelvis

Author: Dr. med. vet. Gisa Löwe | Last modified: 06.11.2025

Urethral prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. in dogs is a medical condition in which the lining of the urethra prolapses and protrudes visibly from the urethral opening. This occurs most often in young, male dogs, especially in certain breeds.

The most important facts at a glance

Urethral prolapse in dogs occurs when the lining of the urethra is pushed outwards by increased pressure in the abdomenThe abdomen, also known as the abdominal cavity, is the part of the body located between the rib cage and the pelvis. It houses several important organs, including the stomach, liver, kidneys, intestines, and spleen. or other factors. Certain breeds such as Bulldogs, Boston Terriers, and Pugs are more commonly affected due to anatomical features. Causes can include chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. cough, breathing problems, or urinary tract infections. Symptoms include a pea-sized massIn pathology, the term "mass" is used to describe an abnormal lump or growth in the body. A mass can form in the skin or subcutaneous tissue, or even inside the body. The causes can be benign (not cancer) or malignant (cancer). at the urethral opening, increased licking in the genital region, urinary urgency, and difficulty urinating. DiagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. is made by physical examination and possibly imaging procedures such as ultrasoundUltrasound refers to sound waves that are above the hearing threshold of the human ear. In medicine, ultrasound is used for diagnostic imaging procedures to visualize internal organs, tissues, and blood flow. or X-rays. Treatment varies from anti-inflammatory drugsAnti-inflammatory drugs are medications that reduce inflammation. They can be divided into nonsteroidal anti-inflammatory drugs (NSAIDs) and corticosteroids and are used in dogs and cats to reduce Inflammatory conditions and Pain. to surgical procedures in which the mucosaMucosa, also called mucous membrane, refers to the moist lining of body cavities that are connected to the outside world, such as the mouth, nose, lungs, and gastrointestinal tract. It serves to protect and facilitate the absorption of nutrients. is fixed or removed. The prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. is generally good if the prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. is treated early. Regular follow-up examinations are important to prevent recurrentRecurrent refers to a disease that repeatedly returns or worsens after a temporary remission or improvement. prolapses. Preventive measures include regular veterinary examinations and avoiding overweight. Research is being conducted to identify genetic influences and better diagnostic and therapeutic options. Advances in research could improve the quality of life of affected dogs.

Causes

The urethra is an important part of the urinary system that carries urine from the bladder to the outside. It is lined with a mucous membrane that is normally well protected and held in place. A urethral prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. occurs when this mucous membrane is pushed outwards by increased intra-abdominal pressure or other factors.

Genetic factors may play a role, as certain breeds, such as Bulldogs, Boston Terriers, and Pugs, are more commonly affected. This may be due to anatomical features that increase the susceptibility to prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. in these breeds.

Other causes may include chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. cough or breathing problems that increase pressure in the abdomenThe abdomen, also known as the abdominal cavity, is the part of the body located between the rib cage and the pelvis. It houses several important organs, including the stomach, liver, kidneys, intestines, and spleen.. Urinary tract infections or stones that lead to repeated straining can also promote the prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse.. The exact mechanisms are not yet fully understood, but hormonal influences may also be involved.

Symptoms

Very common symptoms:

Common symptoms:

Symptoms of urethral prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. are often clearly visible. The most noticeable sign is the protrusion of a red, round massIn pathology, the term “mass” is used to describe an abnormal lump or growth in the body. A mass can form in the skin or subcutaneous tissue, or even inside the body. The causes can be benign (not cancer) or malignant (cancer). at the tip of the penis. This massIn pathology, the term “mass” is used to describe an abnormal lump or growth in the body. A mass can form in the skin or subcutaneous tissue, or even inside the body. The causes can be benign (not cancer) or malignant (cancer). may be swollen or inflamed and bleed, especially if the dog tries to urinate or licks itself.

Affected dogs may also show signs of discomfort or pain, including more frequent urination or difficulty urinating. In some cases, excessive licking of the affected area may occur, which can increase inflammation and the risk of bleeding.

If an infectionAn infection is the colonization and multiplication of pathogens such as bacteria, viruses, fungi, or parasites in an organism, which often, but not always, leads to a disease. is present, additional symptoms such as fever, lethargy, or loss of appetite may occur. It is important to recognize these signs early to avoid complications.

Diagnosis

DiagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. of urethral prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. is usually made by physical examination, during which the veterinarian inspects the prolapsed massIn pathology, the term "mass" is used to describe an abnormal lump or growth in the body. A mass can form in the skin or subcutaneous tissue, or even inside the body. The causes can be benign (not cancer) or malignant (cancer).. An accurate historyThe medical history is the systematic collection of a patient's medical history through questioning. It includes information about previous illnesses, treatments, allergies, and lifestyle habits. of the dog can be helpful, especially if risk factors such as breathing problems or a genetic predispositionA predisposition is an innate inclination or susceptibility of an organism to certain diseases or conditions. In dogs and cats, there may be a genetic predisposition to certain conditions such as hip dysplasia or certain heart diseases. are present.

Additional diagnostic measures may include urinalysis to rule out the presence of infections or stones. In some cases, cystoscopyCystoscopy is a diagnostic procedure that uses a cystoscope, a thin tubular instrument with a camera, to directly view the bladder and urethra. It allows for the diagnosis of lower urinary tract conditions in dogs and cats, including Tumors, stones, and infections. may be performed to directly inspect the urethra and bladder and rule out other possible causes.

Imaging procedures such as ultrasoundUltrasound refers to sound waves that are above the hearing threshold of the human ear. In medicine, ultrasound is used for diagnostic imaging procedures to visualize internal organs, tissues, and blood flow. or X-rays can also be used to assess the condition of the urinary tract and identify any complications.

Therapy

The treatment of urethral prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. depends on the severity of the prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. and the underlying causes. In mild cases, conservative treatment with anti-inflammatory drugsAnti-inflammatory drugs are medications that reduce inflammation. They can be divided into nonsteroidal anti-inflammatory drugs (NSAIDs) and corticosteroids and are used in dogs and cats to reduce Inflammatory conditions and Pain. and antibiotics to combat a possible infectionAn infection is the colonization and multiplication of pathogens such as bacteria, viruses, fungi, or parasites in an organism, which often, but not always, leads to a disease. may be sufficient.

In more severe cases, surgery may be required. The prolapsed mucosaMucosa, also called mucous membrane, refers to the moist lining of body cavities that are connected to the outside world, such as the mouth, nose, lungs, and gastrointestinal tract. It serves to protect and facilitate the absorption of nutrients. is carefully pushed back and possibly fixed with sutures to prevent recurrence. In some cases, complete removal of the prolapsed tissue may be necessary.

PostoperativePostoperative refers to the time after a surgical operation. This phase includes recovery and the management of possible complications after the procedure. care is crucial to ensure a full recovery. This may include administering pain relievers, applying topicalTopical refers to the direct application of medications or treatments to the skin or mucous membranes for a local effect, without being absorbed into the body. antibiotics, and limiting the dog’s activity to avoid re-stressing the area.

Prognosis and follow-up care

The prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. for dogs with urethral prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. is generally good, especially if the condition is diagnosed and treated early. Most dogs recover completely after appropriate treatment and care.

Early intervention can prevent complications such as chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. infections or irreversible damage to the urethra. Regular follow-up examinations are important to ensure that there are no recurrentRecurrent refers to a disease that repeatedly returns or worsens after a temporary remission or improvement. prolapses or long-term complications.

Even after successful treatment, dog owners should remain vigilant and watch for signs of recurrentRecurrent refers to a disease that repeatedly returns or worsens after a temporary remission or improvement. prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse., especially in dogs belonging to susceptible breeds.

Prevention

Preventive measures can help minimize the risk of urethral prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse.. A regular veterinary examination can help detect early breathing problems or other underlying conditions that could increase the risk.

Dog owners should take care to protect their dog from excessive straining or exertion, especially if it belongs to the predisposed breeds. This can be achieved by controlling respiratoryRespiratory refers to breathing or the process of breathing. Respiratory diseases affect the respiratory tract and can impair the ability to breathe effectively. diseases, avoiding overweight, and providing a balanced diet.

Genetic counseling can be helpful in assessing and minimizing the risk of urethral prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. in breeding dogs. Education about the specific needs and risks of certain breeds can also help make preventive measures more effective.

Outlook on current research

Research on urethral prolapse in dogs is relatively limited, which is likely due to the rarity of the condition. Nevertheless, there are some studies that address the causes, diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients., and treatment of this condition. Much of the current research focuses on identifying predisposing factors, such as genetic influences, breed susceptibility, and hormonal imbalances. Some studies have identified specific breeds such as the English Bulldog and the Boston Terrier that may be more susceptible to this condition, suggesting genetic factors.

Another focus of current research is the improvement of diagnostic procedures. Currently, the diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. is usually made by physical examination and visual inspection. However, there are efforts to develop more advanced imaging techniques such as ultrasoundUltrasound refers to sound waves that are above the hearing threshold of the human ear. In medicine, ultrasound is used for diagnostic imaging procedures to visualize internal organs, tissues, and blood flow. and endoscopic examinations to enable a more accurate and less invasiveInvasive describes medical procedures or pathogens that enter the body or penetrate tissue. In medicine, invasive procedures can range from minimally invasive techniques to open surgery. diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients.. These methods could help to view the mucosal changes in more detail and rule out other potential causes of the symptoms.

Treatment options for urethral prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. are also being explored to identify the best surgical and non-surgical options. Currently, surgical correction is the most common treatment method, but there are also studies examining alternative therapies such as hormonal treatments or the use of anti-inflammatory drugsAnti-inflammatory drugs are medications that reduce inflammation. They can be divided into nonsteroidal anti-inflammatory drugs (NSAIDs) and corticosteroids and are used in dogs and cats to reduce Inflammatory conditions and Pain.. These may play a role in certain cases of urethral prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse., especially if surgical intervention carries a higher risk or is not possible.

Another interesting area of research is postoperativePostoperative refers to the time after a surgical operation. This phase includes recovery and the management of possible complications after the procedure. care and the management of complications. This involves developing protocols that minimize the risk of complications after surgery, such as infections or recurrentRecurrent refers to a disease that repeatedly returns or worsens after a temporary remission or improvement. prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse.. This research could lead to a significant improvement in recovery rates and the quality of life of affected dogs.

In summary, research on urethral prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. in dogs is still in its early stages but is making important progress. Future studies will likely continue to focus on the genetic and biological basis of the disease in order to develop better preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. and treatment strategies. Advances in diagnostics and treatment could help to significantly improve the quality of life of affected dogs.

Frequently asked questions (FAQs)

What is a urethral prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse.? A urethral prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. is a condition in which part of the lining of the urethra prolapses outwards, making it visible. This can lead to a number of symptoms, including bleeding, pain, and difficulty urinating.
Which dogs are most commonly affected? Urethral prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. is more common in certain breeds such as the English Bulldog and the Boston Terrier. Male dogs are more commonly affected than females, and genetic factors are believed to play a role.
What are the symptoms of a urethral prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse.? The most common symptoms include visible massesIn pathology, the term "mass" is used to describe an abnormal lump or growth in the body. A mass can form in the skin or subcutaneous tissue, or even inside the body. The causes can be benign (not cancer) or malignant (cancer). of tissue around the urinary opening, blood in the urine, frequent or painful urination, and excessive licking of the affected area.
How is urethral prolapse diagnosed in dogs? The diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. is usually made by a physical examination, during which the veterinarian observes the visible signs of the prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse.. In some cases, further tests such as ultrasoundUltrasound refers to sound waves that are above the hearing threshold of the human ear. In medicine, ultrasound is used for diagnostic imaging procedures to visualize internal organs, tissues, and blood flow. or cystoscopyCystoscopy is a diagnostic procedure that uses a cystoscope, a thin tubular instrument with a camera, to directly view the bladder and urethra. It allows for the diagnosis of lower urinary tract conditions in dogs and cats, including Tumors, stones, and infections. may be necessary to rule out other conditions.
What treatment options are there? The most common treatment method is surgical correction of the prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse.. In some cases, anti-inflammatory drugsAnti-inflammatory drugs are medications that reduce inflammation. They can be divided into nonsteroidal anti-inflammatory drugs (NSAIDs) and corticosteroids and are used in dogs and cats to reduce Inflammatory conditions and Pain. or hormonal treatments may be used to relieve symptoms or delay the need for surgery.
What is the prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. after treatment? The prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. is usually good if the prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. is detected and treated in time. Most dogs recover completely after surgery, although complications or recurrentRecurrent refers to a disease that repeatedly returns or worsens after a temporary remission or improvement. prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. may occur in some cases.
Can complications occur after surgery? Yes, as with any surgery, complications can occur. These include infections, post-operative bleeding, or recurrentRecurrent refers to a disease that repeatedly returns or worsens after a temporary remission or improvement. prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse.. However, careful postoperativePostoperative refers to the time after a surgical operation. This phase includes recovery and the management of possible complications after the procedure. care can minimize the risk of such complications.
Are there ways to prevent a urethral prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse.? Targeted preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. is difficult because the exact causes are not yet fully understood. However, early diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. and treatment of hormonal imbalances or other predisposing factors can help reduce the risk.
Can a urethral prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. heal on its own? A urethral prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. usually does not heal on its own and requires medical intervention. Without treatment, the condition can lead to serious complications, including chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. infections or permanent tissue damage.
Is urethral prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. painful in dogs? Yes, the condition can be painful and uncomfortable for the dog. Affected dogs often show signs of discomfort, such as frequent licking or biting of the affected area, and may have difficulty urinating.