Small flesh grains in the armpits may be caused by diseases such as folliculitis, molluscum contagiosum and filiform warts. It can be treated by topical medication, oral medication, physical therapy, surgery and other ways. 1. Folliculitis: Folliculitis is caused by bacterial infection, such as local moisture, sweat, scratching, bacterial invasion of the hair follicle, resulting in the local appearance of small raised meatballs, usually accompanied by pain or itching. Erythromycin ointment, fusidic acid cream can be used externally, if necessary, with cefadroxil, amoxicillin and other antibiotic drugs. 2. Soft fibroma: soft fibroma is a benign tumor of the skin, the cause of which has not been fully clarified. It may occur in the neck, armpit, groin and other places, resulting in localized polypoid swelling. It can be treated by liquid nitrogen freezing, laser or surgical excision. 3. Filiform warts: Filiform warts are caused by human papilloma virus infection, and can occur in the face and neck, armpits, resulting in the local appearance of small particles. You can use fluorouracil ointment or liquid nitrogen, laser and other means of treatment. There may be other reasons for the appearance of small meatballs in the armpits, and it is recommended to visit the dermatology department of the hospital in a timely manner to find the cause before treatment.