Skin induration is a deep thickening of the skin that can result from edema, inflammation, or infiltration, including by cancer. Diagnosis of skin induration is made by palpation (feeling the area) and assessing whether the raised area has a hard, resistant feeling.

Skin induration is a skin condition where the skin becomes thick and hard. Although not scientifically proven, it is often caused by infections, skin inflammation, cancer, or underlying conditions. Since it can be a sign of serious underlying conditions, it is important to understand the cause and see a doctor as soon as possible.

Indurated skin occurs when the skin becomes hardened or firm, resembling a dense or solid mass beneath the surface. The degree of induration can vary based on the underlying cause and severity of the illness. Skin induration can stem from various causes, including infections, inflammation, fibrosis, edema, and even the normal healing process.

It is a result of infiltration of the skin by leukaemic cells, resulting in variable papules, nodules and plaques. Typically, they can be pinkish, violaceous (purplish) or darker than surrounding normal skin. In addition, they are almost always non-tender and palpable with a firm, indurated texture.