Armpit generally refers to the armpit, small bumps of flesh in the armpit is usually a symptom of dermatomas, filiform warts, sebaceous cysts, which can be treated with physical therapy or surgery according to different etiologies. 1. skin tattoos: a benign skin growth, and skin aging, obesity, hormone metabolism abnormalities, can be removed by laser, electrocautery or cryotherapy. 2. Filiform warts: Filiform warts are caused by human papilloma virus infection, which can lead to the emergence of long, thin, protruding warts in the armpits, accompanied by apical keratinization, which can be removed by laser, freezing, electrocautery and other ways. 3. Sebaceous cysts: these are caused by sebaceous gland duct obstruction and need to be surgically removed. If the cysts are small and have no obvious symptoms, they can be temporarily observed. If the cyst is small and no obvious symptoms, it can be observed temporarily. Specifically, you need to go to the hospital, after a clear diagnosis, under the guidance of the doctor to choose the appropriate treatment plan.