RESUMO
Dysmenorrhea is a common presentation in women of reproductive age in primary care. It can negatively affect the quality of life of a woman and restrict her daily activities. Endometriosis is the most common diagnosis for secondary dysmenorrhea. However, cutaneous endometriosis is an uncommon presentation of endometriosis. It requires a thorough history, physical examination and histological findings for definitive diagnosis. This paper reports an interesting case of a 47- year-old woman with primary cutaneous umbilical endometriosis and its management. Her final diagnosis was primary umbilical endometriosis with Stage 3 endometriosis based on the patient's history, clinical and surgical findings. The patient was discharged well on day three of operation and has been well since then with no signs of recurrence.