Swollen Glands, Hernias, and Other Lumps Under the Skin - Topic Overview
Most swollen glands or lumps under the skin are not cause for concern. The glands (lymph nodes) on either side of the neck, under the jaw, or behind the ears commonly swell when you have a cold or sore throat.
More serious infections may cause the glands to enlarge and become very firm and tender. Glands can also swell and become tender after an injury, such as a cut or bite, or when a tumor or infection occurs in the mouth, head, or neck.
Swollen glands and other lumps under the skin can be caused by many different things, including illness, infection, or another cause.
Swollen glands commonly develop when the body fights infections from colds, insect bites, or small cuts. More serious infections may cause the glands to enlarge and become firm, hard, or tender. Examples of such infections include:
Types of noncancerous (benign) growths, which are usually harmless, include:
- A lipoma, a smooth, rubbery, dome-shaped lump that is easily movable under the skin.
- A cyst, a sac of fluid and debris that sometimes hurts.
- Cystic lesions from acne are large pimples that occur deep under the skin.
- Branchial cleft cysts are found in the neck and do not usually cause problems unless they become infected. These cysts are most common in teenagers.
- An epidermal cyst (also called a sebaceous cyst) often appears on the scalp, ears, face, or back.
- A ganglion is a soft, rubbery lump (a type of cyst) on the front or back of the wrist.
- Tonsillitis, which may also cause swelling in the neck.
- A salivary gland problem, such as inflammation, a salivary stone, an infection, or a tumor.
- An inflammation of fatty tissue under the skin (erythema nodosum) or overgrown scar tissue (keloid).