Small red bumps on the feet are very itchy may be tinea pedis, eczema, contact dermatitis and other diseases. 1. Tinea pedis: Tinea pedis is mainly caused by the infection of causative organisms such as Trichophyton rubrum and Trichophyton mustelii, and the main symptoms of patients are blisters, erythema, papules, etc. In addition, patients with tinea pedis will also have itching, burning and pain. In addition, tinea pedis patients will also appear itching, burning, pain and other symptoms. 2. Eczema: the cause of eczema is not yet clear, and it is considered to be caused by various factors such as internal and external factors. Patients will appear erythema, corn-sized papules, blisters and papules, vesicles and other symptoms, but also itching, flaking, mossy changes and other symptoms. 3. Contact dermatitis: contact dermatitis is mainly due to skin contact with exogenous substances caused by allergy or irritation caused by the patient’s main symptoms are erythema, pinpoint-sized dense pimples, edema and other symptoms, as well as swelling, pain, itching and other symptoms. Patients with symptoms of small red bumps on the feet may have other causes, and should consult a doctor in time and follow the doctor’s instructions for treatment.