Red spots on the skin of inner thighs may be caused by vascular nevus, eczema, ringworm and other factors, which can be relieved by laser, topical medication and oral medication. 1. Vascular nevus: the etiology is unknown at present, may be related to heredity and other factors, manifested as red papules or red spots, pressure does not fade. Generally, it does not affect health and can be treated with CO2 laser if necessary. 2. Eczema: it is a chronic, itchy skin disease, clinically manifested as grain-sized pimples and accompanied by obvious itching symptoms, at this time can be used externally with glycerine lotion, halomethasone and other hormonal drugs, combined with oral antihistamines such as chlortetracycline and other drug therapy. 3. Ringworm: It is a superficial skin infection caused by dermatophytes, and the lesions are mostly confined to the stratum corneum. In the early stage of the disease, it may appear as reddish pimples, which will then form reddish patches spreading to the surrounding area. It can be treated by topical ketoconazole, miconazole and other drugs, and oral itraconazole and other drugs if necessary. Red spots appearing on the inner thighs, you should go to the hospital in time, improve the relevant examination to clarify the cause of the disease, symptomatic treatment under the guidance of the doctor, avoid unauthorized use of drugs.