Home » Diseases » In dogs » Hyperostosis cutis, Ehlers-Danlos syndrome (Cutaneous Asthenia)

Hyperostosis cutis, Ehlers-Danlos syndrome (Cutaneous Asthenia) in Dogs

Occurrence: very rare
Location of disease: Skin/Fur

Author: Dr. med. vet. Gisa Löwe | Last modified: 17.02.2026

When to visit the vet?

Non-urgent see a veterinarian within 2–3 days

If the condition worsens / symptoms persist, consult a veterinarian.

Definition

Hyperostosis cutis, also known as Ehlers-Danlos syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment. or cutaneousCutaneous refers to the skin. Cutaneous can be used to describe conditions, treatments, or reactions related to the skin of dogs and cats, such as skin diseases or topical medication application. asthenia in dogs, is a rare genetic disorder characterized by an abnormal collagen structure in the skin, leading to increased skin elasticity and fragility.

The most important facts at a glance

Ehlers-Danlos syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment. (EDS) in dogs is a genetic disorder caused by defects in collagen synthesis. Collagen is crucial for the strength and elasticity of the skin and other tissues. In dogs with EDS, the collagen is abnormal, leading to a weakening of the connective tissue. Inheritance is usually autosomal recessive, meaning both parents must be carriers of the defective gene. However, some breeds may also exhibit autosomal dominant inheritance. Affected dog breeds include Irish Setters, Boxers, Beagles, and Poodles. Symptoms include loose skin, Skin wrinkling, easy skin vulnerability, and loose joints. 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 through clinical examinations, skin biopsies, and genetic tests. There is no cure, so treatment focuses on managing symptoms and preventing injuries. Wounds must be carefully treated to prevent infections. Preventive measures include breeding controls and avoiding injury risks. Research focuses on the genetic causes, diagnostic tests, and potential treatments. 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. varies depending on the severity of the disorder, with quality of life potentially significantly impaired in more severe forms. An interdisciplinary research approach aims to lead to better 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 options in the future.

Causes

Ehlers-Danlos syndrome in dogs is a genetic disorder caused by defects in collagen synthesis. Collagen is an important structural proteinProteins are large molecules made up of amino acids and play an essential role in almost all biological processes. They are necessary for building body tissue, the function of the immune system, and as enzymes for metabolic reactions. that ensures the strength and elasticity of the skin and other tissues. In dogs with this disorder, the collagen is abnormally structured, leading to a weakness of the connective tissue.

The genetic basis of the condition can vary, but often an autosomal recessive inheritance pattern is responsible. This means that both parents must be carriers of the defective gene for a puppy to be affected. In some breeds, it can also be inherited in an autosomal dominant manner, meaning that only one parent needs to pass on the defective gene.

There are different types of Ehlers-Danlos syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment., caused by various genetic mutations. Affected breeds include Irish Setters, Boxers, Beagles, and Poodles, among others. Each breed can show different clinical manifestations, depending on the specific type of collagen deficiencyDeficiency means a lack or absence of a necessary substance required for normal bodily functions or health, such as vitamins, minerals, or hormones..

Symptoms

Very common symptoms:

Common symptoms:

Joint Laxity

The symptoms of cutaneousCutaneous refers to the skin. Cutaneous can be used to describe conditions, treatments, or reactions related to the skin of dogs and cats, such as skin diseases or topical medication application. asthenia in dogs are primarily limited to the skin. Affected dogs show unusually stretchy and fragile skin that can be easily injured. The skin tends to split on its own or tear with minor traumaA trauma refers to a physical injury or damage caused by external force. Traumas can range from simple cuts to severe multiple injuries., leading to bleeding Wounds.

Other symptoms may include Scar tissue formation, Skin infections due to increased wound susceptibility, and hematomas (bruising). Some dogs may also experience joint problems, as collagen also plays a role in the joints.

In more severe cases, internal organs may also be affected. However, this is rare and tends to occur in advanced stages of the disease. The symptoms can vary in intensity, depending on the severity of the genetic mutationA mutation is a permanent change in the DNA sequence (genetic material) of an organism. In dogs and cats, mutations can lead to genetic diseases or desirable changes in certain traits. and the affected breed.

Diagnosis

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. of Hyperostosis cutis, or Ehlers-Danlos syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment., is usually made through a combination of clinical examination and specific tests. The veterinarian will check skin elasticity and strength by lifting the skin and examining how far it stretches and how quickly it returns to its original shape.

A biopsyA biopsy is a medical procedure in which a small amount of tissue is removed from the body to be examined under a microscope for signs of disease. Biopsies can help diagnose cancer and other conditions. of the skin can also be performed to examine the structure of the collagen under the microscope. This examination can provide information on whether the collagen is abnormal. In some cases, genetic tests can be performed to identify the specific mutationA mutation is a permanent change in the DNA sequence (genetic material) of an organism. In dogs and cats, mutations can lead to genetic diseases or desirable changes in certain traits., especially in breeds that are predisposed to the disorder.

Additionally, blood tests may be performed to rule out other possible causes of skin problems. It is important to make an accurate 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. so that an appropriate treatment strategy can be developed.

Therapy

There is currently no cure for Ehlers-Danlos syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment. in dogs, so treatment focuses on managing symptoms and preventing injuries. Affected dogs should be kept in a safe environment to minimize the risk of skin injuries.

Wounds must be carefully monitored and treated to prevent infections. This may include the application of antiseptic solutions and, if necessary, antibiotics. In severe injuries, surgical intervention may be required, although healing can be delayed due to the collagen problem.

Pain relief and anti-inflammatory medications may be necessary to alleviate discomfort. In some cases, dietary supplementationSupplementation is the addition of nutrients, vitamins, or other substances to a normal diet to compensate for deficiencies or to support general health and well-being. In dogs and cats, supplementation may vary depending on their health condition and nutritional needs. with vitaminVitamins are organic compounds that are necessary in small amounts for the normal growth, development, and physiological function of the body. Vitamins must mostly be obtained through food, as the body cannot produce them or not in sufficient quantities. C may be considered, as it plays a role in collagen synthesis, although the effectiveness of this treatment is controversial.

Prognosis and follow-up care

The prognosis for dogs with Hyperostosis cutis varies depending on the severity of the disorder. Dogs with mild forms of the disorder can lead a relatively normal life with appropriate management. However, in more severe forms, the quality of life can be significantly impaired, as continuous care and protectionProtection refers to safeguarding against diseases or harm. In veterinary medicine, this can include protecting animals through vaccinations, the use of parasite control products, or providing a safe environment. are required.

A worsening of symptoms can occur over time, especially if injuries are not carefully prevented. Life expectancy may be reduced, especially if internal organs are affected or severe infections occur.

Prevention

Since Ehlers-Danlos syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment. is genetic, preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. is primarily focused on breeding control. Breeders should ensure that they do not breed affected dogs or carriers of the defective gene. Genetic tests can help identify carriers and should be considered for breeds with a known 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..

For affected dogs, it is important to create an environment that minimizes the risk of injury. This may include avoiding sharp or rough surfaces, as well as wearing protective clothing to protect the skin. Regular veterinary monitoring is also important to monitor the dog’s health and detect complications early.

Outlook on current research

Current research on Ehlers-Danlos syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment. (EDS) in dogs, particularly cutaneousCutaneous refers to the skin. Cutaneous can be used to describe conditions, treatments, or reactions related to the skin of dogs and cats, such as skin diseases or topical medication application. asthenia, focuses on the genetic basis of the disorder. Scientists are investigating specific genetic mutations responsible for abnormal collagen production. These mutations lead to reduced skin strength and elasticity, resulting in the typical symptoms of the disorder. Researchers use modern genetic sequencing technologies to identify and better understand the responsible genes.

Another area of research is the development of diagnostic tests that enable early and accurate 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.. This is crucial to provide affected dogs with the right care in a timely manner. Researchers are working on developing non-invasive tests based on the analysis of skin samples or blood to detect genetic markers for EDS.

Therapeutic approaches are also a focus of research. Currently, there is no cure for EDS, but researchers are investigating various treatment options to improve the quality of life of affected dogs. These include the development of drugs that could influence collagen production, as well as physiotherapyVeterinary physiotherapy encompasses a range of treatment methods aimed at improving the mobility and well-being of animals through exercise, massage, and other manual techniques. measures to support the affected animals.

In addition to genetic and therapeutic research, scientists are working to deepen the understanding of the clinical manifestations of the disease. This includes studying the different severities and symptoms that can occur in affected dogs. A better understanding of this variability can help veterinarians develop individually tailored treatment plans.

An interdisciplinary approach is crucial for progress in EDS research. Veterinarians, geneticists, and biologists work together to investigate the various aspects of the disease and develop effective solutions. This collaborative approach promises to enable groundbreaking discoveries in the future that could significantly improve the understanding and treatment of EDS in dogs.

Frequently asked questions (FAQs)

What is Ehlers-Danlos syndrome (EDS) in dogs?

EDS in dogs is a genetic disorder caused by abnormal collagen production. This leads to reduced skin strength and elasticity, resulting in typical symptoms such as hyperextensible skin and increased susceptibility to injury. -

Which dogs are affected by EDS?

EDS can occur in dogs of any breed, but some breeds such as Beagles, Boxers, and German Shepherds appear to be more frequently affected. The condition is believed to be inherited in an autosomal recessive manner, meaning that both parents must be carriers of the defective gene to pass on the disease. -

What symptoms occur in dogs with EDS?

The most common symptoms are hyperextensible skin that is easily injured, as well as joint problems and an increased tendency to bruising. Some dogs may also have problems with the eyes or internal organs, depending on the severity of the disease. -

How is EDS diagnosed in dogs?

The diagnosis is usually based on a combination of clinical symptoms, a thorough physical examination, and genetic tests. Veterinarians may also perform skin biopsies to examine the collagen structure and confirm the diagnosis. -

Is there a cure for EDS in dogs?

Currently, there is no cure for EDS in dogs. Treatment focuses on relieving symptoms and improving quality of life. This can be achieved through protective measures for the skin, pain management, and physiotherapy measures. -

Can dogs with EDS live a normal life?

Dogs with EDS can live a relatively normal life with appropriate care and management. It is important to avoid injuries and take good care of the skin. Regular veterinary check-ups help to detect and treat complications early. -

How can I help my dog with EDS?

To help your dog with EDS, you should ensure a protective environment that minimizes the risk of injury. Use soft surfaces and avoid rough games that could strain the skin. A special diet and care program can also help support skin health. -

Is EDS contagious in dogs?

No, EDS is not contagious. It is a genetic disorder that cannot be transmitted through Contact with other animals or people. -

What progress is being made in EDS research?

Research is making progress in identifying the genetic causes of EDS and developing better diagnostic methods. In addition, therapies are being explored that could alleviate symptoms and improve the quality of life for affected dogs. -

Can EDS be prevented in dogs?

Since it is a genetic disorder, EDS cannot be completely prevented. However, breeders can use genetic tests to identify carriers of the defective gene and make informed breeding decisions to minimize the risk of passing on the disease.