Blisters on the feet may be tinea pedis, sweat blisters or blisters caused by mechanical friction, but you should also be alert to the possibility of herpes diseases such as aspergillosis and aspergillosis-like. The most common type of blisters on the feet is tinea pedis, which is mainly on the lateral edge of both feet, with dense small blisters accompanied by varying degrees of itching, often combined with erosion of the toe seam and a foul odor. Some people have excessive sweaty feet and are prone to get sweat blisters, which can also manifest as small blisters on the feet. It needs to be identified by a professional doctor or with the help of an instrument. If you walk for a long time, shoes do not fit your feet, etc., it is also easy to form blisters and blood blisters on the feet, which can generally be picked. There is a category of herpes in dermatology, which has a low incidence, with blisters as the main manifestation, and the foot is one of the preferred sites, with a poor prognosis. Therefore, it is recommended to seek medical attention as soon as possible if blisters on the feet cannot be clearly identified.