Itchy thigh skin can be seen in physiological conditions such as tight pants, etc., but also may be eczema, mosquito bites and other factors, you should consult a doctor in a timely manner to clarify the cause of the corresponding treatment. 1. Physiological conditions: normal people wear tighter pants walking for too long will cause itchy thigh skin, such people should pay attention to the replacement of appropriate clothing, generally without special treatment. 2. Eczema: itchy thighs may also be caused by eczema, mostly symmetrical distribution, local polymorphic rash, there will be oozing, can be used locally glycerol, hydrocortisone treatment. 3. Mosquito bites: itchy thighs inside may also be caused by mosquito bites, mostly in the summer, this kind of people in the occurrence of itching before going to the grass, woods and other mosquitoes more places. Itchy thigh skin is recommended to go to the hospital, clear cause in the doctor’s guidance under the symptomatic treatment, do not self-medication.