Itchy elbows may be caused by physiological factors such as dry climate, or it may be caused by ringworm, atopic dermatitis, eczema and other diseases. 1. Physiological factors: If the climate is dry, it may lead to dry skin, which may cause elbow itching. 2. Tinea corporis: the etiology is mainly related to dermatophyte infections, and common ones include Trichophyton rubrum and Trichophyton breakatum. The patient will appear red papules, papules and other symptoms, and then form red patches and covered with scales, accompanied by varying degrees of itching, if you have ringworm, may cause elbow itching. 3. Atopic dermatitis: the cause of the disease may be related to heredity, immune abnormality, skin barrier damage and other factors. Patients will have dry skin, intense itching and other symptoms, commonly found in the elbow, neck and other parts of the body. 4. Eczema: the cause is related to heredity, hormone level changes, metabolic diseases and other factors. Patients will appear localized erythema, papules, papules and other symptoms, often accompanied by itching, most commonly found in the limbs, hands, feet and other parts. There are more diseases that cause itchy elbow, after excluding physiological factors, it is recommended to go to the regular hospital for medical examination, to clarify the cause of the disease, and follow the doctor’s instructions for treatment.