The growth spurt in girls can happen years earlier than in boys. Body parts may grow at different rates. Teens often seem to be clumsy and feel awkward during this time.

All teens need a calcium-rich diet. This will make sure that they store enough calcium in their bones.

A healthcare provider should watch a teen’s growth and development on a regular basis. This should be done once a year if possible.

The Tdap booster is recommended for teens ages 11 to 12. Teens 13 to 18 who missed getting the Tdap booster at ages 11 to 12 should also get it. Those who got a tetanus-diphtheria booster at ages 11 to 12 should get Tdap for more protection against pertussis. Teens should also get a meningococcal vaccine, HPV (human papillomavirus) vaccine (3 doses), and a yearly flu vaccine. They should also get catch-up shots for measles, mumps, and rubella, and chickenpox, if they missed a dose in childhood.

Nearsightedness (myopia) often starts in childhood. It then gradually gets worse during the teen years. The process most often eases up by the time a person reaches their mid-20s.

According to the National Institute on Drug Abuse, use goes up from eighth grade to 10th to 12th grade. Recent studies show that fewer eighth- to 10th-graders are using these. But 12th-graders' use remains steady. Girls are less likely to use anabolic steroids than are boys.

These symptoms may also be symptoms of illness. Check for drug paraphernalia. Have your teen's healthcare provider check them to rule out other possible causes.