Clear bubbles on the feet may be blistering tinea pedis, sweat herpes, contact dermatitis and other diseases. 1. Blistering tinea pedis: blistering tinea pedis is mainly caused by dermatophyte infection, or consider it to be induced by factors such as excessive sweating of the feet and decreased immunity of the organism. Patients can appear in the foot blisters, blister liquid clear, and with itching, vesicles, erythema and other symptoms, manifested as transparent bubbles on the feet. 2. Sweat herpes: the etiology of sweat herpes is not yet clear, may be due to local allergies and other factors. Patients can appear in the feet of the blisters containing clear pulp, patients can appear on the feet of the transparent bubble situation. 3. Contact dermatitis: the clear bubbles on the feet are also considered to be caused by contact dermatitis. Contact dermatitis is mainly caused by skin contact with exogenous substances that irritate the skin or trigger an allergic reaction. Patients may experience symptoms such as blisters, itching and burning. There are many reasons for the clear bubbles on the feet, it is recommended that patients go to the regular hospital, relevant examination, so as to clarify the cause of the disease.