Small blisters on the feet (blisters in medicine) do not hurt or itch may be due to friction blisters, tinea pedis, sweat herpes, eczema and other factors.
1. Friction blisters: due to long-term walking, frequent friction, shoes do not fit the feet and other factors, resulting in local skin epidermis and subcutaneous tissue separation, the formation of interstitial space, and filled with liquid, the formation of skin erythema and tension blisters, preferably in the palm of the foot and other thick layer of the corneum position, there may be a different degree of pain.
2. Tinea pedis: also known as “foot fungus”, is caused by fungal infections, occurring in the toe space, soles, lateral margins and other parts of the foot, manifested as blisters, peeling, scaling, skin roughness and other symptoms, there may be varying degrees of itching, easy to aggravate in the summer or recurrence.
3. Sweat herpes: may be related to mental factors, local infection, stimulation and other factors, often occurring in the palms of the hands, soles of the feet, and fingers, toes, lateral margins, more symmetrically distributed, manifested as a local skin deep blisters the size of a grain of rice, slightly higher than the surface of the skin, often accompanied by sweaty hands and feet, the patient may have a different degree of itching, occurring in the summer, prone to relapse.
4. Eczema: is caused by a variety of internal and external factors of the superficial dermis and epidermal inflammation, can occur in any part of the foot can appear in the red corn size pimples, small blisters, vesicles, oozing and other symptoms, can be accompanied by itching, may not be accompanied by itching.
Small blisters on the feet without pain or itching may also be due to other reasons, it is recommended that patients seek medical attention in a timely manner, and actively cooperate with the relevant examination, in order to clarify the cause of the symptomatic treatment.