Does basal cell carcinoma cause skin ulcer?

Basal cell carcinoma can damage the surface of the skin and leave an ulcer, sometimes with a raised or firm edge. The area may crust, ooze, bleed, or seem to improve before opening again. Ulcers can also follow injury, infection, pressure, poor circulation, or inflammatory skin disease. The appearance cannot confirm cancer, but a persistent or unexplained ulcer deserves a proper skin assessment.

Book a clinical appointment and keep the ulcer clean and protected from rubbing. Avoid picking, strong antiseptics, and unprescribed steroid or antibiotic creams. Note its location, duration, drainage, bleeding, pain, and changes at the edges. A clinician may examine the surrounding skin and recommend a biopsy or wound assessment, depending on what they see.

Seek prompt care for an ulcer that enlarges, repeatedly bleeds, develops a firm border, or occurs on the face near the eye, nose, ear, or lip. Urgent attention is needed for heavy bleeding, spreading redness, fever, foul drainage, or rapidly worsening pain.

Ask whether the ulcer needs a biopsy, how to dress it safely, which warning changes should prompt faster review, and how its location would influence treatment if basal cell carcinoma is found.