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    Growth and Development, Ages 15 to 18 Years - When to Call a Doctor

    Talk to your teen's doctor if you are concerned about your teen's health or other issues. For example, you may have concerns about your teen:

    • Having a significant delay in physical or sexual development, such as if sexual development has not begun by age 15.
    • Becoming sexually active. Teens who are sexually active need to be educated about birth control and sexually transmitted infections (STIs) and screened for STIs.
    • Being overweight or underweight.
    • Having severe acne.
    • Having problems with attention or learning.

    Call the doctor or a mental health professional if your teen develops behavioral problems or signs of mental health problems. These may include:

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    • Expressing a lack of self-worth or talking about suicide.
    • Acting physically aggressive.
    • Regularly experiencing severe mood swings, such as being happy and excited one minute and sad and depressed the next.
    • A significant change in appetite, weight, or eating behaviors. These may signal an eating disorder.
    • Dropping out of school or failing classes.
    • Having serious relationship problems with friends and family that affect home or school life.
    • Showing a lack of interest in normal activities and withdrawing from other people.
    • Seeking or having sex with multiple partners.

    For more information, see the topics Depression in Children and Teens, Anorexia Nervosa, Binge Eating Disorder, Sexually Transmitted Infections, and/or Teen Alcohol and Drug Abuse.

    WebMD Medical Reference from Healthwise

    Last Updated: September 09, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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