Itchy legs at night may be physiological reasons such as dry skin, there may be pathological reasons, such as ringworm, eczema, hives, etc., need to be analyzed according to the symptoms. 1. Physiological reasons: autumn and winter and other dry seasons, can lead to the lack of moisture in the body, causing dry skin, there will be itchy legs, in general, the day and night will lead to itchy skin, daytime distraction, while resting at night is more prone to itchy, so the night is more obvious. 2. Pathological causes (1) Ringworm: ringworm is usually caused by fungal infection, occurs in the superficial parts of the skin disease, there can be red papules, clear boundaries and covered with scaly patches, accompanied by itching, so it can be itchy by the legs. (2) Eczema: Eczema is an inflammatory disease of the skin whose etiology is still unclear, mainly manifested as erythema, papules, papules, blisters, etc., accompanied by intense itching. (3) Urticaria: Urticaria is an allergic disease mainly characterized by hives, which can be manifested as different types of hives and/or angioedema, which are bright red, pale, skin-colored, round, oval, or irregular pimples distributed in isolation or present in patches, accompanied by obvious itching. Itchy legs at night may also have other causes, it is recommended to go to the hospital in time, to clarify the cause of the disease, under the guidance of the doctor to carry out active treatment.