Exostosis

An exostosis is a benign bone growth that forms on the surface of a bone, creating a hard bump covered with cartilage.

How it shows up: it often causes no discomfort and is discovered by chance; in other cases it may be felt as a firm lump or cause pain if it presses on nearby tissues, nerves, or tendons.

Common causes: it can arise from individual predisposition, repeated irritation in an area, or as part of bone development.

Which specialist treats it? The general surgeon can assess this type of growth, and the general practitioner handles the first evaluation and, if needed, refers you to the appropriate area. If you discover a hard, persistent lump, it is worth showing it to a professional to clarify its nature.