The white circle on the thigh skin is considered to be due to vitiligo, lichen planus, anemic nevus and other reasons.
1. Vitiligo: related to autoimmune, genetic and other factors, can lead to local melanocyte destruction, which leads to thigh area because of the lack of melanin, and white circle symptoms, usually no self-conscious symptoms.
2. lichen planus: if the local skin is infected by malassezia, it will lead to skin cuticle stimulation, thus causing chronic superficial fungal infection, so that the patient appeared in the thigh skin with white circle symptoms, at the same time, the surface will be attached to the scales, accompanied by itching.
3. Anemic nevus: Anemic nevus is a disease caused by abnormal development of local vascular tissues, which will make the local skin hypopigmentation, thus triggering the symptom of white circle on thigh skin.
There may be other reasons for the white circles on the thighs, so you should go to the hospital to complete the examination and clarify the cause of the disease and treat the symptoms.