A small lump under the armpit, and it does not hurt or itch, may be related to axillary lymph nodes, sebaceous cysts, lipoma, filiform warts and other diseases.
1. There are a large number of lymph nodes distributed in the axilla, due to the lymph nodes repeatedly subjected to some inflammatory stimulation will appear reactive hyperplasia, which in the clinic will touch the subcutaneous hard knots, usually painless.
2. Sebaceous cyst belongs to a kind of cystic lesion, the cause of the disease is related to the blockage of sebaceous gland ducts, which can be manifested as small painless lumps under the skin, usually adhering to the surrounding skin.
3. Lipoma is a benign mass formed due to the abnormal metabolism of local subcutaneous fat, which is mainly manifested as a painless subcutaneous mass with no adhesion to the skin.
4. Filiform warts is due to the infection of human papilloma virus and the formation of a prominent in the skin surface of the flesh-like superfluous organisms, warts soft texture without pressure pain.
The reason for this is the fact that there are many causes of armpit bumps, so you need to ask your doctor to conduct an interview to determine the cause of the problem.