Itchy dorsum of the feet may be caused by ringworm, contact dermatitis, neurodermatitis and other reasons.
1. Ringworm: a skin disease caused by fungal infection, when ringworm is very serious, it can involve the dorsum of the foot, the skin can appear red papules, clear boundaries and with scaly patches, accompanied by itching.
2. Contact dermatitis: the dorsum of the foot is exposed to some allergens leading to skin allergic reactions, which can be manifested as erythema, papules, pimples, etc. on the dorsum of the foot, accompanied by itching.
3. Neurodermatitis: it is a chronic inflammatory skin disease of unknown etiology, which may be related to mental, scratching and other factors, manifested as single or multiple moss-like lesions, accompanied by paroxysmal intense itching.
It is recommended that patients with itchy insteps go to the hospital in time to get a clear picture of the cause of the disease and get targeted treatment according to the cause.