Calf skin black, rough, itchy, consider the ichthyosis, lack of fat eczema, neurodermatitis and other diseases caused.
1. Ichthyosis: most of the ichthyosis is caused by heredity, known as hereditary ichthyosis, mainly manifested as local dryness, flaking, ichthyosiform lesions, the color ranges from white, grey to brown, which can occur in the lower legs.
2. Lipid-lacking eczema: lipid-lacking eczema, also known as dry eczema, is commonly seen in the lower legs, patients mainly manifested as localized dry skin, roughness, itching, oozing, and mossy changes may also occur.
3. Neurodermatitis: repeated friction stimulation of the calves can cause neurodermatitis, resulting in localized pimples with itching, skin pigmentation, dry and rough.
It is recommended not to scratch stimulation, to avoid infection, you can go to the hospital dermatology department, looking for the cause of local black, rough, itching, targeted treatment.