50.0 MB (50.0 MB compressed)
5120 x 3413 pixels
43.4 x 29.0 cm ⏐ 17.1 x 11.4 in (300dpi)
DR HAROUT TANIELIAN / SCIENCE PHOTO LIBRARY DR HAROUT TANIELIAN / SCIENCE PHOTO LIBRARY
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Prickly heat blisters on the back of a young male. The blisters are caused when sweat ducts close to the surface of the skin become blocked, trapping the sweat in the small vesicles seen here. The vesicles are rarely itchy and will resolve without treatment.
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