Small transparent blisters on the fingertips may be caused by herpes sweat, chicken pox, eczema, tinea cruris and other factors. 1. Sweat herpes: may be related to environmental factors, mental and psychological factors, genetic factors, will lead to transparent blisters on the finger area, blisters slightly above the surface of the skin, may also be accompanied by itching and pain and other symptoms, easy to secondary bacterial infections after scratching. 2. Chickenpox: usually caused by viral infections, with a certain degree of contagiousness, can make the body and finger areas appear transparent blisters, may also be accompanied by fever, fatigue, headache, sore throat and other symptoms. 3. Eczema: contact with allergy-prone substances or consume allergy-prone food, such as animal hair, pollen, seafood, etc., may induce eczema, will make the local appearance of small blisters, and also accompanied by intense itching. 4. Ringworm: related to fungal infection, can be manifested as erythema, blisters, etc., accompanied by itching. Fingertip long transparent small blisters may have other reasons, it is recommended to consult a doctor for appropriate examination and treatment, do not treat yourself, to avoid the lesions continue to aggravate.