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MSDMERCK MANUALConsumer Version
HEALTH TOPICSHEALTHY LIVINGSYMPTOMSEMERGENCIESDRUG INFORESOURCESCOMMENTARYABOUT US
HEALTH TOPICSHEALTHY LIVINGSYMPTOMSEMERGENCIESDRUG INFORESOURCESCOMMENTARY
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  2. Quick Facts: Men's Health Issues/
  3. Biology of the Male Reproductive System/
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Biology of the Male Reproductive System
  • Overview of the Male Reproductive System
    • What is the male reproductive system?
    • How does the male reproductive system work?
      • What are sperm and semen?
      • What is an erection?
      • What is ejaculation?
      • What happens after ejaculation?
    • What can go wrong with a man's reproductive system?
  • Puberty in Boys
    • What is puberty?
    • What causes puberty in boys?
    • What changes happen during puberty in boys?
    • What can go wrong with puberty?
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