Itchy calf skin black after scratching may be caused by ichthyosis, lack of lipid eczema, neurodermatitis and other causes.
1. Ichthyosis: usually most of the ichthyosis is caused by heredity, known as hereditary ichthyosis, mainly manifested as local dry, flaky and scaly lesions, the color range from white, grey to brown, may appear in the calves, resulting in patients with itchy and scratching the calf skin after the phenomenon of black.
2. Lipid-poor eczema: also known as dry eczema, commonly found on the lower legs, mainly manifested as localized dry, rough, itchy and oozing skin, which may lead to blackening of the patient’s calf skin after itching and scratching.
3. Neurodermatitis: If the patient repeatedly friction stimulation of the calves may also cause neurodermatitis, resulting in localized plaques, accompanied by itching, hyperpigmentation, skin dryness and roughness and other symptoms, may lead to patients with itchy calf skin after scratching the phenomenon of blackening.
There are many other reasons for the blackening of the calf skin after itching and scratching, it is recommended that patients actively seek medical treatment and standardized treatment under the guidance of a professional doctor.