Small black sarcoma on the lower body is mostly considered to be vulvar fibroma, pseudo acromegaly, acromegaly and other diseases. 1. Vulvar fibroma: small black sarcoma on the lower body is mostly considered to be vulvar fibroma, which belongs to benign tumors of mesodermal origin, usually caused by vulvar infections, allergic vulvovaginitis, mechanical stimulation, etc. The tumor is often found in the labia majora, labia minora, and the vulva. The tumors are usually found in labia majora, and a few patients may occur in labia minora, clitoris and other parts of the body. The small sarcoma is mostly dark brown and round, smooth and tough, usually accompanied by pain. 2. Pseudo-acromegaly: the black sarcoma of the lower body may also be pseudo-acromegaly, which belongs to benign papillomatosis, the etiology of which is still unclear, and may be related to chronic inflammation or long-term stimulation of secretions. The performance of the inner lips of the labia minora or vaginal opening red, white or black small sarcoma, symmetrical distribution, surface smooth, usually no symptoms, occasionally itching. 3. acromegaly: the black small sarcoma of the lower body, can also be considered as acromegaly. The majority of warts are due to the infection of the human papilloma virus, resulting in the genital lesions reaction, lesions at first for a single or more scattered light red pimples, the texture is soft, the tip of the sharp. After the gradual increase in size, warts are white, pink or black gray, like a small black sarcoma. There are many other reasons why the lower body grows a small black sarcoma, it is recommended to consult a doctor in a timely manner, to clarify the cause of the disease, targeted treatment, so as not to delay the condition.