Blisters medically refers to blisters, and blisters on the palms of the feet may be caused by tinea pedis, eczema and other diseases. 1. Tinea pedis: it is mainly caused by ringworm infection, or it may be induced by factors such as sweaty feet, dampness and airlessness. Patients can appear in the foot in groups or distribution of small blisters, can be accompanied by itching, manifested as blisters on the palms of the feet. 2. Eczema: its causes include immune abnormality, heredity, hormone level change and so on. Patients can appear in the palm of the foot blisters, papules and other symptoms, accompanied by itching. In addition, sweat herpes, belonging to a special type of eczema, the cause of which is not yet clear, may be caused by local allergies, dermatophyte infections, emotional stress, seasonal changes and other factors. May appear in the hands, feet, intense itching blisters, can be symmetrical distribution, the patient may appear in the palms of the feet with blisters. There are many reasons that cause patients to develop blisters on the palms of their feet, and it is recommended that patients identify the causes of the disease in a timely manner.