Lumps can form under the skin for many reasons, including cysts or swollen lymph nodes. Often they don’t require treatment, but if they change in size or appearance, contact a doctor for an exam.

Different types of lumps can develop in the breasts. These may hurt and cause discomfort or may be painless. Tumors, cysts, and infections are common causes of breast lumps. If a person notices any ...

A lump on the areola, or area around the nipple, can have numerous possible causes. A lump can be a local infection, a breast hematoma, sebaceous hyperplasia, or Paget’s disease of the nipple.

Causes of a lump on your chest can include a cyst, abscess, lipoma, or benign tumor. A doctor can diagnose the lump with imaging tests, and if they find anything, they can recommend treatment. When ...