The armpits may be the manifestation of breasts, or it may be the phenomenon of swollen lymph nodes in the armpits, or it may be the phenomenon of warts and other skin surface superfluous organisms. 1. paratactic breasts: paratactic breasts, also known as polydactyly, is a congenital developmental abnormality disease that occurs in the armpits, which can lead to the symptoms of the axillary breasts, the patient can also appear in the center of the axillary bulge part of the areola-like hyperpigmentation performance. 2. Enlarged axillary lymph nodes: Infection, breast cancer and other factors can lead to the emergence of axillary lymph node swelling, axillary lymph node swelling can also lead to the emergence of axillary breast symptoms. 3. common warts: common warts is a kind of skin surface wart-like cumbersome organisms caused by human papilloma virus infection, the disease can also lead to the symptoms of underarm breasts. In addition to the above diseases, other causes can also lead to underarm breast symptoms, it is recommended to consult a doctor in time to identify the cause and ask the doctor to deal with it.