Itchy legs after taking off pants at night is considered to be caused by contact dermatitis, urticaria, insect bite reaction and other diseases.
1. Contact dermatitis: contact dermatitis is a disease caused by skin contact with exogenous substances, mainly manifested as erythema, pimples, etc., the patient conscious itching. After taking off your pants at night, the skin on your legs may cause itching if it comes into contact with a sensitizer.
2. Urticaria: Urticaria is a limited edema that occurs in the skin and mucous membranes, manifested as wind and itching of varying degrees. Causes are many, including physical factors, food factors, respiratory inhalants and skin contacts, etc. Itchy legs after taking off pants at night is considered to be caused by hot and cold changes induced by urticaria.
3. Insect bite reaction: Insect bite reaction is related to insect bites, which occurs in the exposed parts of the skin. After taking off your pants at night, the local skin is exposed, and after being bitten by insects, it will appear itchy.
There are more reasons for itchy legs after taking off pants at night, so it is recommended to consult a doctor for a clear diagnosis.