Causes of Lumps Under the Skin

A soft, mobile lump that grows slowly may be a lipoma, while a round lump near the surface may be a skin cyst. A tender, warm, red lump can occur with a boil or another local infection. Some lumps follow an injury, insect bite, injection, or repeated friction. Less commonly, a firm or persistent growth needs assessment to identify its nature; a lump alone does not establish a cancer diagnosis.

Notice whether the area is painful, warm, discoloured, draining, fixed in place, or changing in size. The nearby skin and the body region also help a clinician decide whether examination, imaging, or sampling is useful.

Do not squeeze, pierce, or repeatedly press a lump, because this can irritate tissue and spread infection. Record when you first noticed it and whether it changes. Keep an inflamed area clean and avoid shaving or friction over it. A clinician can examine the lump and discuss options; selected inflamed nodules may sometimes be treated with a Steroid Injection Into The Skin, while an infection may need different care.

Arrange prompt medical assessment for a lump that is rapidly enlarging, very painful, hot, draining, associated with fever, or limiting movement. Seek urgent care for severe pain with spreading redness, marked swelling, or feeling acutely unwell. A lump that remains, returns, becomes firm or fixed, or changes the overlying skin should also be examined. Basal Cell Carcinoma can sometimes appear as a changing skin growth, while Boils are painful infected lumps.

Ask what the lump feels like on examination, whether it appears superficial or deeper, and what changes should prompt review. You can also ask whether observation, imaging, drainage, removal, or a sample is appropriate and how to care for the area while waiting.