The causes of peeling and itching on both sides of the feet may include tinea pedis, palmoplantar keratosis, and contact dermatitis. 1. Tinea pedis: Tinea pedis is mostly related to fungal infections, due to the long-term stimulation of the foot by fungal infections, the soles of the feet are gradually keratinized. It usually manifests itself as erythema, blisters, peeling, itching and other symptoms on the feet, so the peeling and itching on both sides of the feet may be caused by tinea pedis. 2. Palmoplantar keratosis: palmoplantar keratosis is a hereditary disease, mainly manifested as excessive keratinized plaques on the parts that are often rubbed. When palmoplantar keratosis appears on both sides of the foot, it can aggravate the lesions due to daily activities, thus causing peeling and itching. 3. Contact dermatitis: contact dermatitis is related to long-term contact with irritating allergens on the feet, which can lead to thickening and hardening of the skin lesions, and even itchiness, peeling and other uncomfortable symptoms. Because of the causes of the two sides of the feet peeling itchy for a variety of reasons, so after this situation, it is recommended to go to the hospital in a timely manner to check to find out the specific causes and actively comply with the doctor’s instructions on the treatment of the symptoms.