Introduction: In our study, patients who applied for abdominal wall mass and pain after cesarean section and were examined and treated and diagnosed endometriosis were evaluated in terms of age, body mass index (BMI), number of cesareans, clinical signs, size of endometriosis and surgical characteristics, as well as therapy and results. Methods: January 2001-December 2021 in our clinic after cesarean section, surgery due to a painful mass in the abdominal wall and pathologically diagnosed endometriosis cases were retrospectively investigated. Age, number of cesareans, clinical signs, size of endometriosis and surgical characteristics and therapy results were recorded. Four patients were diagnosed with endometriosis with a tru-cut biopsy. All patients underwent primary mass excision. Results: A total of 14 patients were identified. The average age of the patients was 35.9 and the average BMI was 26.81. All patients were admitted with a painful mass at the cesarean site. Only four patients had multiple cesarean sections. Ultrasonography and abdominal computed tomography were evaluated. Desmoid tumor, foreign body reaction, granuloma, abscess and endometriosis were identified in their preliminary diagnosis. Endometriosis was established by tru-cut biopsy in four patients. Primary mass excision was performed for all the patients. In one patient, prolene mesh repair was performed, while in other patients primary repair was performed. In all patients, pathological diagnosis was reported as endometriosis ekstarna. Conclusion: The diagnosis of endometriosis should be kept in mind when diagnosing patients with pain and/or mass complaints at the site of surgery after cesarean section.