Primary umblical endometrosis is a rarely seen entity. It consists of only 0.5 - 1% of extragenital endometrosis. Endometriosis may present in different regions with various clinical conditions. In this case report, a 45 years-old patient with an approximately 3 cm sized mobile, inflamed nodule with irregular appearance in umblicus which has cyclic umblical bloody discharge and pain during menstruation was underwent a total umblical excision. Cutaneous endometriosis was diagnosed as a result of the histopathological evaluation. With this case report, we want to emphasize that umblical endometriosis should be considered and taken in mind during evaluation of umblical nodule which lead to pain and bloody discharge from the umblicus with cyclic menstrual pain. And also, the diagnosis should be supported histopathologically after excision.
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