The male reproductive anatomy includes the bladder, epididymis, penis, scrotum, and prostate gland.
In an uncircumcised boy, the foreskin will begin to separate from the tip of the penis. This happens naturally while the boy is a baby. This is called foreskin retraction.
Cognitive development means the growth of a child's ability to think and reason. This growth happens differently from ages 6 to 12, and ages 12 to 18.
The teen years bring a focus on social interactions and friendships. This includes same-gender friends, same-gender groups of friends, and cross-gender groups of friends. In addition, sexual maturity triggers teens' interest in dating and sexual relationships.
Women suffer more frequent and severe symptoms from STDs. Some STDs can cause pelvic inflammatory disease, which can lead to both infertility and ectopic pregnancy.
AIDS is caused by the human immunodeficiency virus, which kills or impairs cells of the immune system and progressively destroys the body's ability to fight infections and certain cancers.
The only safe sex is no sex, most healthcare providers say. But certain precautions and safe behaviors can reduce a person's risk of contracting a sexually transmitted infection.
Detailed information on what teen boys can expect during a physical exam.
During puberty, a teen boy will grow taller and heavier, and hormones will lead to sexual maturity. Read on to learn what to expect.