The common causes of blisters on feet (medically known as blisters) include friction blisters, blister-type athlete’s foot, eczema and so on. 1. Friction blisters: If the shoes you usually wear are not suitable for your feet, or if you walk for a long time and frequently rub the skin of your feet, it is easy to lead to the separation of the local epidermis and the subcutaneous tissue, thus forming a gap, filled with tissue fluid and forming blisters, which can cause different degrees of pain. 2. blister tinea pedis: this disease is mainly caused by fungal infection, common causative organisms including red trichophyton, trichophyton fungus, etc., occurring in the foot, the initial lesions for the pinpoint size of the deep in the blisters, blister liquid clear, thick wall and shiny, not easy to break, can be fused with multi-housed blisters and other symptoms. 3. Eczema: the cause of this disease is not clear, may be related to chronic infection foci, heredity, allergies and other factors, lesions manifested as erythema, papules, papules, small blisters, can be fused into a piece of symptoms. It is recommended that patients according to their own situation, usually pay attention to foot hygiene and cleanliness, wear comfortable shoes and socks, avoid prolonged standing or walking, if necessary, go to the regular hospital dermatology department, follow the doctor’s instructions reasonable treatment.