You may worry that your teen is using drugs or alcohol if they become withdrawn or negative. But these behaviors are common for teens. They may also be signs of a mental health condition, such as depression.
It's important not to accuse your teen unfairly. Tell your teen that you are concerned. Try to find out why their behavior has changed.
Experts recommend that parents look for a pattern or a number of changes, not just one or two. Signs that a teen may be using drugs or alcohol include:
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