Thigh redness, swelling and itching may be caused by contact dermatitis, solar dermatitis, insect bite dermatitis and other factors.
1. Contact dermatitis: for example, contact with irritating toiletries or allergenic substances may cause contact dermatitis, which will lead to localized redness, swelling and itching of the thighs, which may also be accompanied by burning pain and other symptoms.
2. Solar dermatitis: in summer, the thighs are exposed to sunlight for a long time, may cause solar dermatitis, will lead to localized itching, redness, swelling of the thighs, may also be accompanied by a burning sensation, pain, and even systemic symptoms, such as nausea and vomiting, dizziness and so on.
3. Insect bite dermatitis: when the thighs localized by mosquito bites, such as mosquitoes, bedbugs, lice, etc., may cause insect bite dermatitis, which can lead to localized redness and swelling of the thighs itchy, and accompanied by a tingling as well as burning sensation.
Itchy thighs may also be caused by ringworm, it is recommended that patients go to the hospital dermatology examination, clear cause, follow the doctor’s instructions standardized treatment, to avoid causing other complications.