DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Close-up of the testes of an adult male patient, showing inflammation (epididymo-orchitis) and reddening. This painful condition is due to a bacterial infection spread from the epididymis, the tubes that link each testis to its vas deferens.
Model release not required. Property release not required.