A long strip of small bags under the right armpit may be related to enlarged lymph nodes, soft fibroids, epidermoid cysts and so on, according to the specific symptoms analysis. 1. Enlarged lymph nodes: Inflammation of axillary lymph nodes due to infection leads to enlargement of local lymph nodes. The enlarged lymph nodes are usually soft in texture, with tenderness, smooth surface and no adhesion. 2. Soft fibroma: soft fibroma belongs to benign tumor, which is caused by repeated friction or overgrowth of skin. It is mostly seen in the neck, armpit and other parts of the body, and is commonly seen as papillary, strip-like, flabby growths of different sizes. 3. Epidermoid cysts: originating from the hair follicle, the content of the capsule for the keratinized material, can be manifested as a volume of varying sizes above the skin surface of the swelling, secondary infection can be accompanied by a bad smell. The right armpit has a long strip of small bags may also have other reasons, it is recommended that the patient to the hospital in a timely manner to clarify the cause of the disease, in accordance with the doctor’s instructions for treatment.