Morphea is an uncommon persistent condition in which there are areas of thickened skin. It is also known as localized scleroderma . It may affect adults or children.
In nearly all cases the cause of morphea is unknown. It can however sometimes follow:
Plaque-type morphea is usually active for several years then slowly softens, leaving brown staining and sometimes depressed areas of skin. Linear morphea lasts longer, but also eventually improves, although sometimes deposits of calcium arise within the lesions. Limbs affected by severe morphea may be stiff and weak if there is muscle wasting.