Fibroids usually grow under the skin, grow slowly, are relatively small, have clear edges, are smooth to the touch, have no adhesions to surrounding tissues, can be pushed by hand, and are relatively hard in texture. Fibroids can occur in many parts of the body, most commonly in the neck, chest, groin, and thighs. Fibroids are mostly benign and are divided into three categories: 1. Fibroids that occur on the trunk or upper arm are yellow or dark coffee colored, up to 1 cm in size, hard and fast growing, and require surgery. 2. Banded fibroids, which occur on the abdominal wall, are formed mainly due to muscle trauma or post-surgical reparative hyperplasia, and can be treated surgically. 3. Bulging cutaneous fibrosarcoma, which mostly This type of fibrosarcoma is prone to recurrence after excision and has a higher chance of malignancy and metastasis after recurrence, and should be treated with surgery as soon as possible.