Blisters are clinically known as blisters, and blisters on the feet may be related to factors such as friction, blister-type athlete’s foot, and sweat herpes. 1. Friction: if you wear unsuitable shoes or friction between your feet and substances with hard texture, it can cause tissue fluid to ooze out and gather together to form blisters, which are mostly single-issue. 2. Blistering tinea pedis: it is a skin disease of the foot caused by fungal infection, and it occurs between the toes, the lateral edge of the foot and other parts of the foot, and it can be distributed in groups or scattered, accompanied by obvious itching and other discomforts. 3. Sweat herpes: belongs to a kind of eczema, the cause is not clear, may be related to sweating, local moisture, local infection and other factors, blisters are mainly distributed in the palm of the hand, soles of the feet, toes and other parts of the sides, can be accompanied by varying degrees of itching, burning sensation and other discomforts. There are many other causes of blisters on the feet, it is recommended to go to the hospital in a timely manner, to clarify the cause of the disease, and then follow the doctor’s instructions for treatment.