The body long small meat grain consider with common warts, infectious mollusc, fibroma and so on related. 1. common wart: commonly known as wart, this disease is due to the human papilloma virus infection of human epidermal cells caused by benign skin proliferation, the patient has a rough surface, the texture of solid pimples, with the passage of time, the lesions can be gradually enlarged to papillary hyperplasia. 2. Molluscum contagiosum: commonly known as the water wart, this disease is due to the infectious molluscum contagiosum virus infection caused by the infectious skin disease, the patient has a hard texture of small papules, its surface has a waxy luster, the center has a depression, after squeezing the cheese-like material out. 3. Fibroma: this disease is due to the excessive proliferation of fibrous connective tissue and the formation of local benign tumors, the patient is mostly manifested as a local size varying round or ovoid solid nodules, smooth or rough surface. For patients with small meatballs, it is recommended that patients go to a regular hospital, clear cause of the disease under the guidance of the doctor active treatment.