The causes of itchy blisters on toes include eczema, athlete’s foot, herpes sweat, contact dermatitis and so on. 1. Eczema: In the case of eczema, due to the stimulation of internal and external factors, skin damage can occur, so the symptoms of itchy blisters on toes appear. 2. Tinea pedis: in the case of tinea pedis, due to the invasion of fungi, these fungi can damage the skin of the feet, and the symptom of itchy blisters on toes can also occur. 3. Sweat blisters: when sweat blisters appear, due to genetic allergies, contact with allergens, etc., damage to the skin of the feet, triggering the production of small blisters in the deep. 4. Contact dermatitis: when the skin of the foot comes into contact with irritants such as allergens, the symptoms of itchy blisters on the feet will also appear. The appearance of small blisters on the toes is very itchy phenomenon, may also be caused by other reasons, please go to the hospital in time to check.