Induration

Induration refers to the abnormal hardening of a tissue, often the skin or the tissue beneath it, which feels firmer to the touch than the surrounding area.

Why it appears: It may result from inflammation, infection, scarring, or a reaction to a blow or an injection, among other possible causes.

How it presents: The area usually feels hard and sometimes tender, and may be accompanied by color changes, local warmth or swelling around it.

Which specialist evaluates it? The general practitioner can perform an initial evaluation and guide the next steps, while the dermatologist studies cases that affect the skin or that do not resolve over time. If you notice a hardening that persists, grows or changes, a professional review helps clarify its origin.