Small transparent blisters on the body may be caused by chickenpox, white heat rash, sweat herpes and other diseases. 1. Chickenpox: Chickenpox is caused when the human body is infected by the varicella zoster virus, which can be transmitted by droplet transmission or contact transmission, such as contact with items contaminated with herpes fluid. The rash is red in the early stages, and can turn into fluid-filled herpes, which is why small, clear blisters will appear on the body. 2. White prickly heat: this disease is mainly caused by the blockage of sweat ducts, but also related to the hot and humid environment, sweat duct underdevelopment, long-term bed rest, strenuous exercise, ultraviolet radiation and other factors. White prickly heat occurs in the trunk and skin folds, and small transparent blisters will appear locally. 3. Sweat herpes: the cause of the disease is not clear, clinical studies show that it may be related to allergies, dermatophyte infections, emotional stress, hot and humid climate, decreased immunity, injection of immunoglobulin and other factors. The lesions will appear with blisters containing clear pulp and shiny, which can be manifested as small transparent blisters on the body. When small transparent blisters appear on the body, patients need to go to the hospital in time to clarify the specific causes.