Itchy calves may be caused by physiological factors such as lack of hygiene, followed by eczema, ringworm and other diseases. 1. Physiological factors: unclean, dry skin or dehydration and other physiological factors, may trigger itchy calves. 2. Eczema: the etiology of this disease is not clear, may be caused by a variety of factors, such as genetic, environmental, mental and so on. Eczema is typically manifested as itching, the patient’s skin may also appear erythema, edema, papules and other symptoms, the most common parts of the hands and feet, limbs and other places. 3. Tinea corporis: the typical symptoms of tinea corporis include red papules, small blisters and pimples, often accompanied by varying degrees of itching, and its prevalent parts are the trunk, arms, legs and other places. The disease is mostly related to dermatophyte infections, such as Trichophyton rubrum, Trichophyton violetum, and Trichophyton breakatum. There are more causes of itchy calves, and after excluding physiological factors, patients are advised to go to regular hospitals to clarify the cause.