Itchy bumps on the soles of the feet may be caused by herpes sweat, eczema, blistering tinea pedis and other diseases. 1. Sweat herpes: Sweat herpes may be caused by heredity, dermatophyte infection, local allergy, mental tension and other factors. Patients will appear in the feet of intense itching blisters, can be accompanied by tingling, burning sensation, manifested as itching on the soles of the feet with small bumps. 2. Eczema: Eczema may be caused by heredity, immune abnormalities, hormone level changes, endocrine disorders and other factors. Patients will show pimples, levels, papules, itching, etc., appearing as itchy soles of the feet with small bumps. 3. Blistering tinea pedis: The causes of blistering tinea pedis include dermatophyte infection, localized sweating, and poor hygiene habits. Patients may have blisters, itching and other symptoms on the feet, which can be manifested as itchy bumps on the soles of the feet. Once patients have itchy feet with small bumps, they can go to the hospital and find out the cause of the disease.