A hard, small, fleshy lump inside the lip may be an epidermoid cyst or a mucous cyst, or it may be a soft tissue sarcoma. The diagnosis needs to be confirmed according to the clinical manifestations and laboratory tests. 1. Epidermoid cysts: epidermoid cysts may be due to injury surgery or congenital development, located in the mucous membrane or deep subcutaneous parts, palpation is tough and elastic, like dough-like, clinically, generally surgical removal. 2. Mucus cysts: often bite the lower lip, long-term stimulation can cause mucus cysts, touch with the hand for soybean, cherry size, soft and elastic, repeated rupture with thick white scar raised, generally pumping out the cystic fluid after surgical resection. 2. Soft tissue sarcoma: can be seen in fibroma or papilloma, can occur in the lip red mucous membrane part, fibroma grows slowly, can be moved into a round ball, papilloma manifested as a painless nodule, can be hairy, for the abnormal proliferation of local tissues. Lips inside the growth of a hard small lump of flesh need to go to the hospital to do a detailed examination to confirm the diagnosis.