Fingertips under the skin with transparent bubbles may be due to herpes sweat, blister ringworm, acute hand eczema and other factors. 1. herpes sweat: mostly related to the patient’s physical condition, vegetative nerve dysfunction and other factors, most often in summer, common in the palms of the hands, soles of the feet, fingers and other parts of the body, manifested as small blisters deep in the skin of the size of a grain of rice, slightly above the surface of the skin, often accompanied by sweating, peeling, etc., but also can have varying degrees of itching or burning, generally recurring regularly every year. 2. blister ringworm: is due to dermatophytes caused by superficial skin fungal infections of the hands, mostly unilateral onset, blister ringworm occurs in the interphalangeal, palm, the onset of the initial period can appear in the pinpoint-sized deep in the blisters, blisters clarified, blister wall thick, not easy to break, blisters scattered or clustered, gradually stabilized, to the skin flaking, itching as the main manifestation. 3. Acute hand eczema: generally believed to be a combination of internal and external factors, commonly found on the back of the fingers and the palm surface of the finger tips. Acute hand eczema is mainly manifested as flaky erythema of the skin of the hands, with blisters, papules, vesicles, oozing and other changes on the erythema, and itching is often obvious. Fingertip subcutaneous transparent bubbles may also be due to other factors, it is recommended that patients seek medical attention in a timely manner, under the guidance of the doctor for relevant examinations, in order to clarify the cause of the disease, targeted treatment.