Small Black Lump Under the Skin: What to Know

A central dark opening can occur with a blocked follicle or cyst. A tender, warm lump that fills with pus may fit a boil or another infection. A pigmented spot may be a mole or a different growth. Basal Cell Carcinoma can sometimes appear as a changing, bleeding, crusted, or non-healing spot, so a dark lump that evolves should be examined rather than squeezed.

Notice when it appeared, whether it is firm or soft, whether it moves under the skin, and whether there is pain, drainage, bleeding, or a recurring crust. These details help a clinician decide whether observation, treatment, or sampling is appropriate.

Do not squeeze, pierce, or shave across the lump. Keep the area clean and take a clear photograph beside a ruler so its size and surface can be compared. Arrange a dermatology appointment for a new or persistent lump, especially if it changes. Treatment depends on the diagnosis; some inflamed lesions may be considered for Steroid Injection Into The Skin, while others need a different approach.

Seek prompt care for rapidly increasing pain or swelling, spreading redness, fever, pus, or red streaks. Arrange an urgent skin review for repeated bleeding, an ulcer that does not heal, rapid growth, or a lump with irregular colour or edges. Do not wait for symptoms to become painful before checking a changing pigmented lesion.

Does the surface and depth suggest a cyst, infection, mole, or another growth? Should it be photographed, monitored, removed, or sampled? What changes should prompt an earlier visit?