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.

Medically reviewed by Casey Gallagher, MDMedically reviewed by Casey Gallagher, MD Bumps on elbows can occur due to allergies, chronic skin conditions, and more. Some, like the condition keratosis ...

A lipoma is a lump under the skin that occurs due to an overgrowth of fat cells. Lipomas are typically harmless but people may wish to remove one that causes pain, complications, or other symptoms ...