{"id":35693,"date":"2024-06-05T12:29:36","date_gmt":"2024-06-05T10:29:36","guid":{"rendered":"https:\/\/petsvetcheck.de\/krankheiten-und-stoerungen\/hund\/pyometra-und-zystische-endometriumhyperplasie-gebaermuttervereiterung\/"},"modified":"2026-10-15T14:49:36","modified_gmt":"2026-10-15T12:49:36","slug":"pyometra-and-cystic-endometrial-hyperplasia-uterine-infection","status":"publish","type":"krankheit","link":"https:\/\/petsvetcheck.de\/en\/diseases-and-disorders\/dog\/pyometra-and-cystic-endometrial-hyperplasia-uterine-infection\/","title":{"rendered":"Uterine Infection and Cystic Thickening of the Uterine Lining in Dogs (Pyometra and Cystic Endometrial Hyperplasia)"},"content":{"rendered":"","protected":false},"featured_media":0,"template":"","krankheitsort":[137],"haufigkeit":[134],"organsystem_krankheiten":[225],"class_list":["post-35693","krankheit","type-krankheit","status-publish","hentry","krankheitsort-bauch-becken-en","haufigkeit-a-en","organsystem_krankheiten-reproductive-organs","entry"],"acf":{"synonyme":"","synonyme_en":"Uterine Infection","titel_en":"Pyometra and Cystic Endometrial Hyperplasia","weitere_suchbegriffe":"","triage":"red","triage_begruendung":"Infected uterus, often life-threatening; rapid surgery and stabilization required.","definition":"Pyometra and cystic endometrial hyperplasia are uterine conditions in dogs characterized by the accumulation of pus and the thickening of the uterine lining. These conditions usually occur in older, intact female dogs and can be life-threatening if not treated in time. ","ursachen":"A female dog's uterus consists of various layers, of which the lining (endometrium) plays an important role in preparing for a possible pregnancy. During the reproductive cycle, the endometrium undergoes changes controlled by hormones such as estrogen and progesterone. \n\nCystic endometrial hyperplasia (CEH) results from repeated cycles of hormonal changes without pregnancy. This leads to a thickening of the uterine lining and the formation of cysts. These changes create a favorable environment for bacteria to grow, which can eventually lead to pyometra.  \n\nPyometra usually develops a few weeks after heat, when the uterus is under the influence of progesterone. This promotes mucus secretion and reduces the immune system's defense, making it easier for bacteria to enter and multiply. The most common pathogens associated with pyometra are bacteria such as <i>Escherichia coli<\/i>.  ","auswahl_symptome_rot":[34215,33810,33332,34178],"auswahl_symptome_blau":[34149,34123,34056,34294,33920,33793,33423],"auswahl_symptome_grun":[33844,34049,33743,33371],"erganzungen_zu_symptomen":"The symptoms of pyometra are varied and depend on the severity of the condition. The most common symptoms include increased thirst (polydipsia) and increased urination (polyuria). These symptoms occur because the bacterial infection releases toxins that impair renal function.  \n\nOther signs include lethargy, loss of appetite, and vomiting. Dogs with open pyometra, where the cervix is open, may have a foul-smelling, purulent discharge from the vagina. In a closed pyometra, this discharge is absent, which can make diagnosis more difficult.  \n\nFever is another possible symptom, although it does not occur in all affected dogs. In severe cases, a life-threatening state of shock can occur, requiring immediate treatment. ","zusammenfassung":"Pyometra and cystic endometrial hyperplasia (CEH) are Diseases that frequently occur in dogs in connection with hormonal changes of the reproductive cycle. CEH arises from repeated cycles without pregnancy, leading to a thickening of the uterine lining and cyst formation, which promotes bacterial growth. Pyometra often develops after heat, when progesterone weakens the uterus's immune system, facilitating the entry of bacteria such as Escherichia coli into the uterus. Typical Symptoms include vaginal discharge, loss of appetite, increased thirst and urination, Vomiting, weakness, and Fever. Diagnosis involves clinical symptoms, blood tests, and imaging techniques, with ultrasound examinations being particularly helpful. The main treatment is the surgical removal of the uterus and ovaries, as this method eliminates the risk of recurrence. Antibiotics are also an important part of the treatment. The Prognosis is good with timely Diagnosis and treatment, although complications such as renal failure and Sepsis can occur. For Prevention, castration \/ neutering is recommended, while close monitoring is important for breeding dogs. Research focuses on genetic, hormonal, and environmental factors, as well as on the development of less invasive treatment methods and better diagnostic tests.         ","diagnose":"The diagnosis of pyometra is based on a combination of clinical symptoms, blood tests, and imaging techniques. A complete blood count may show elevated white blood cells, indicating an infection. Kidney values may also be elevated, indicating an impairment of renal function due to toxins.  \n\nUltrasound examinations are a valuable tool for detecting an enlarged, fluid-filled uterus. X-rays can also be useful for assessing the size and shape of the uterus, but provide less detailed information than ultrasound. \n\nIn some cases, a biopsy of the uterine lining may be necessary to confirm the diagnosis and rule out other diseases. An accurate diagnosis is crucial for choosing the correct treatment method. ","behandlung":"Treatment for pyometra usually requires surgical removal of the uterus and ovaries, a procedure known as an ovariohysterectomy. This surgery is the preferred method as it both clears the infection and eliminates the risk of recurrence. \n\nIn some cases, especially for young breeding dogs, medical treatment may be considered. This involves administering prostaglandins to open the cervix and promote uterine contractions to expel the pus. However, this method carries risks and is less reliable than the surgical option.  \n\nAntibiotics are an essential part of treatment, regardless of the chosen method. They help fight the infection and support recovery. The choice of antibiotics is ideally based on a culture and sensitivity test of the bacteria.  ","prognose":"The prognosis for dogs with pyometra depends on the severity of the disease and how quickly treatment is started. With timely diagnosis and surgical intervention, the prognosis is generally good, and most dogs make a full recovery. \n\nComplications can occur, especially if the pyometra is advanced or the female dog is already weakened. These include renal failure, sepsis, and shock, which can significantly impair survival chances. \n\nLong-term complications are rare, but in some cases, fertility problems may occur, especially if medical treatment was attempted. However, complete recovery and a return to normal activity are to be expected in most surgically treated dogs. ","ausblick_auf_aktuelle_forschung":"Current research on pyometra and cystic endometrial hyperplasia in dogs focuses on the genetic, hormonal, and environmental factors that contribute to the development of these diseases. There is evidence that genetic predispositions may play a role, as some dog breeds are more frequently affected than others. Older, unspayed female dogs are particularly susceptible, especially breeds such as the Bernese Mountain Dog, Golden Retriever, or Collie. Researchers are investigating genetic markers associated with an increased risk for developing these conditions to develop better prevention strategies.   \n\nAnother research focus is on the role of hormones, particularly progesterone, which thickens the uterine lining and thus contributes to the development of cystic endometrial hyperplasia. Studies are investigating how hormonal changes during the sexual cycle of dogs can lead to increased susceptibility to infections and Inflammatory conditions. The research aims to understand the exact mechanism by which progesterone and other hormones influence uterine health, and to clarify how these processes can be modulated through therapeutic interventions.  \n\nIn the field of treatment methods, alternative approaches to the conventional ovariohysterectomy (castration \/ neutering) are being investigated, which is currently the most effective treatment for pyometra. Scientists are experimenting with medical treatments that combine hormonal blockers or antibiotics to treat milder cases and reduce the need for surgical intervention. However, these studies are still in their early stages, and it is still unclear to what extent such treatments can represent a viable alternative to surgery.  \n\nAnother promising area of research deals with the development of diagnostic tests for the early detection of cystic endometrial hyperplasia and pyometra. Advances in imaging technology, such as high-resolution ultrasound or MRI, as well as the analysis of biomarkers in the blood, could facilitate diagnosis in the future and improve the prognosis. Such tests could enable veterinarians to detect the disease at an earlier stage, before severe symptoms occur, thereby improving the treatment outcome.  \n\nIn summary, research on pyometra and cystic endometrial hyperplasia in dogs aims to better understand the underlying causes of these diseases, develop more effective and less invasive treatment methods, and improve diagnostics. Much remains to be done, but progress in these areas could lead to better management and a higher quality of life for affected animals in the long term. ","zusatzlicher_inhalt_im_hauptteil":"The most effective method for prevention of pyometra is castration \/ neutering, which involves the surgical removal of the uterus and ovaries. This not only prevents pyometra but also reduces the risk of other hormone-dependent diseases and certain types of cancer. \n\nFor breeding dogs for whom castration \/ neutering is not immediately considered, close monitoring during and after heat is important to detect early signs of pyometra. Regular veterinary examinations can help monitor uterine health and identify potential problems early. \n\nA balanced diet and good general care also help strengthen the female dog's immune system and reduce the risk of infection. Avoiding unnecessary hormonal treatments can also reduce the risk of cystic endometrial hyperplasia and subsequent pyometra. ","haufig_gestellte_fragen_faqs":"<ol>\n \t<li><b>What is Pyometra?<\/b> Pyometra is a serious and potentially life-threatening disease in dogs, in which pus accumulates in the uterus. It often occurs in older, intact female dogs, typically a few weeks after a heat. It is a hormonally induced disease often caused by an infection.  <\/li>\n \t<li><b>What symptoms does a female dog with pyometra have?<\/b> Common symptoms include vaginal discharge, increased thirst and urination, lethargy, loss of appetite, and Vomiting. In severe cases, Fever, Abdominal pain, and a distended abdomen may occur. If the cervix is closed, symptoms can be more severe as the pus cannot drain.  <\/li>\n \t<li><b>What is cystic endometrial hyperplasia?<\/b> Cystic endometrial hyperplasia is a precursor to pyometra and refers to a thickening of the uterine lining due to cystic changes. This thickening is caused by hormonal changes, particularly progesterone, and can make the uterus more susceptible to infections that can lead to pyometra. <\/li>\n \t<li><b>How is pyometra diagnosed?<\/b> Diagnosis is usually made through a combination of clinical examination, blood tests, and imaging techniques such as ultrasound or X-ray. These tests help assess the condition of the uterus and rule out other possible causes of the symptoms. <\/li>\n \t<li><b>How is pyometra treated?<\/b> The most effective treatment for pyometra is the surgical removal of the uterus and ovaries, known as an ovariohysterectomy. In mild cases, especially if the cervix is open, medical treatment with antibiotics and hormonal blockers may be attempted, but this is often less effective and carries a risk of relapse. <\/li>\n \t<li><b>Can pyometra be prevented?<\/b> The most reliable method for preventing pyometra is castration \/ neutering (ovariohysterectomy) before the first heat. Since the disease is strongly hormonally influenced, removing the ovaries significantly reduces the risk. Regular veterinary examinations can also help detect early signs.  <\/li>\n \t<li><b>Is pyometra only a problem in older dogs?<\/b> While pyometra is more common in older dogs, younger, intact female dogs can also be affected. The female dog's cycle plays a role, and every female dog in heat carries a potential risk, especially with increasing age. <\/li>\n \t<li><b>What risk factors increase the likelihood of pyometra?<\/b> Risk factors include age, breed, hormonal status, and whether the female dog has previously given birth. Certain breeds have a higher risk, as do female dogs who repeatedly go into heat but do not become pregnant or have received hormonal preparations for contraception. <\/li>\n \t<li><b>What are the survival chances for pyometra?<\/b> With prompt and appropriate treatment, especially surgery, the survival chances are good. However, if left untreated, the disease can quickly become life-threatening. The earlier the treatment, the better the prognosis.  <\/li>\n \t<li><b>Are there long-term consequences after pyometra treatment?<\/b> After a successful ovariohysterectomy, most dogs recover completely without long-term health problems. In cases where surgery is not performed, recurring infections and complications can occur, requiring permanent monitoring. <\/li>\n<\/ol>","literaturangaben":"<ul>\n \t<li>Hagman, R. (2023). Pyometra in small animals 3.0. Veterinary Clinics of North America: Small Animal Practice, 53(5), 1223\u20131254.   https:\/\/doi.org\/10.1016\/j.cvsm.2023.04.009<\/li>\n \t<li>Hagman, R. (2022). Pyometra in small animals 2.0. Veterinary Clinics of North America: Small Animal Practice, 52(3), 631\u2013657.   https:\/\/doi.org\/10.1016\/j.cvsm.2022.01.004<\/li>\n \t<li>Jitpean, S., Str\u00f6m-Holst, B., Emanuelson, U., H\u00f6glund, O. V., Pettersson, A., Alneryd-Bull, C., & Hagman, R. (2014). Outcome of pyometra in female dogs and predictors of peritonitis and prolonged postoperative hospitalization in surgically treated cases. BMC Veterinary Research, 10, Article 6. https:\/\/doi.org\/10.1186\/1746-6148-10-6  <\/li>\n \t<li>Jitpean, S., Ambrosen, A., Emanuelson, U., & Hagman, R. (2017). Closed cervix is associated with more severe illness in dogs with pyometra. BMC Veterinary Research, 13, Article 11. https:\/\/doi.org\/10.1186\/s12917-016-0924-0  <\/li>\n \t<li>Pretzer, S. D. (2008). Clinical presentation of canine pyometra and mucometra: A review. Theriogenology, 70(3), 359\u2013363.   https:\/\/doi.org\/10.1016\/j.theriogenology.2008.04.028<\/li>\n \t<li>Noakes, D. E., Dhaliwal, G. K., & England, G. C. W. (2001). Cystic endometrial hyperplasia\/pyometra in dogs: A review of the causes and pathogenesis. Journal of Reproduction and Fertility. Supplement, 57, 395\u2013406.   <\/li>\n<\/ul>","symptome_ausgeblendet":"","erganzungen":"","faq":[{"frage":"1. What is Pyometra?","antwort":"Pyometra is a serious and potentially life-threatening condition in dogs in which pus builds up in the uterus. It often occurs in older, unspayed bitches, typically a few weeks after a heat cycle. It is a hormone-related condition that is often caused by an infection. -"},{"frage":"2. What symptoms does a female dog with pyometra show?","antwort":"Common symptoms include vaginal discharge, increased drinking and urination, lethargy, loss of appetite, and Vomiting. In severe cases, Fever, Abdominal pain, and a bloated abdomen may occur. If the uterus is closed, symptoms can be more severe because the pus cannot drain. -"},{"frage":"3. What is cystic endometrial hyperplasia?","antwort":"Cystic endometrial hyperplasia is a precursor to pyometra and describes a thickening of the uterine lining due to cystic changes. This thickening is caused by hormonal changes, especially progesterone, and can make the uterus more susceptible to infections that can result in pyometra. -"},{"frage":"4. How is pyometra diagnosed?","antwort":"Diagnosis is usually made through a combination of a clinical exam, blood tests, and imaging such as ultrasound or X-ray. These tests help assess the condition of the uterus and rule out other possible causes of the symptoms. -"},{"frage":"5. How is pyometra treated?","antwort":"The most effective treatment for pyometra is surgical removal of the uterus and ovaries, known as an ovariohysterectomy. In mild cases, especially when the uterus is open, medical treatment with antibiotics and hormonal blockers may be attempted, but it is often less effective and carries a risk of recurrence. -"},{"frage":"6. Can pyometra be prevented?","antwort":"The most reliable way to prevent pyometra is castration \/ neutering (ovariohysterectomy) before the first heat cycle. Because the condition is strongly influenced by hormones, removing the ovaries significantly reduces the risk. Regular veterinary check-ups can also help detect early signs. -"},{"frage":"7. Is pyometra only a problem in older dogs?","antwort":"While pyometra is more common in older dogs, younger, unspayed bitches can also be affected. The bitch\u2019s cycle plays a role, and any bitch that comes into heat carries a potential risk, especially as she gets older. -"},{"frage":"8. What risk factors increase the likelihood of pyometra?","antwort":"Risk factors include age, breed, hormonal status, and whether the bitch has ever had a litter. Certain breeds have a higher risk, as do bitches that have had their heat cycles repeatedly suppressed or have received hormones for contraception. -"},{"frage":"9. What are the survival chances for pyometra?","antwort":"With prompt and appropriate treatment, especially surgery, the chances of survival are good. Without treatment, however, the condition can quickly become life-threatening. The earlier treatment begins, the better the prognosis. -"},{"frage":"10. Are there long-term consequences after pyometra treatment?","antwort":"After a successful ovariohysterectomy, most bitches recover fully without long-term health problems. In cases where surgery is not performed, recurring infections and complications can occur, requiring permanent monitoring. "}],"faq_html":null},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.8 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Uterine Infection and Cystic Thickening of the Uterine Lining in Dogs (Pyometra and Cystic Endometrial Hyperplasia) in dogs<\/title>\n<meta name=\"description\" content=\"Learn more about pyometra and cystic endometrial hyperplasia in dogs. 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