How To Spot the Signs of Drug Use in Teens

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How To Spot the Signs of Drug Use in Teens
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Payal Kakaria, BSN, RN, is the Director of Medical Development at Avenues Recovery Center. A registered nurse by training, she brings a strong foundation in patient-centered, evidence-based care and is committed to advancing high-quality clinical practices across treatment settings.

Many parents have preconceived notions about how their children will turn out as they grow up. They envision sweet-faced, well-behaved children slowly maturing into responsible adults. It’s jarring and a reality shock when moody and withdrawn teenagers, testing their boundaries to the max, replace that fantasy. The teenage years often involve experimenting with various substances, but when drug use enters the picture, addiction can develop quickly. Avenues Recovery is here to help you recognize the warning signs. 

Key Takeaways on Teen Drug Use

  • Experimentation becomes addiction when use is frequent, uncontrollable, and disruptive to daily life.
  • Trust your instincts. If something feels off, it’s worth paying attention to and asking questions.
  • Open, honest communication is one of the strongest protective factors against addiction.
  • Being informed and leading by example helps teens make healthier choices.

  • Support and treatment options exist for both teens and their families.

What Are Signs of Substance Abuse in Teens?

The signs of teenage drug addiction can be broken down into three categories: physical, behavioral, and psychological.

Behavioral Signs of Addiction in Teens

As a parent, it’s normal to feel confused, frustrated, or even guilty when you notice changes in your child’s behavior, but these are often a cry for help rather than deliberate defiance. Observing patterns over time and noticing consistent shifts in attitude, motivation, or social interactions can provide important clues that something deeper may be happening.

Behavioral signs of drug use in a teenager could include:

  • Suddenly being secretive about comings and goings
  • Avoiding eye contact
  • Dropping grades
  • Exhibiting cash flow problems
  • Shifting relationships with family and friends

Physical Teen Drug Abuse Symptoms

Teen lying on couch, face covered, showing effects of drug use

The physical signs of addiction can differ depending on the substance your teen may be using, and some symptoms may appear sooner than others. These changes can be subtle at first and it can be easy to overlook them in the busyness of daily life. 

Physical signs of substance abuse in teens include:

  • Being unusually tired or lethargic
  • Finding bruises on the skin
  • Caring less about personal hygiene
  • Having unusual smells on breath or clothes
  • Slurred speech

Pay attention to their eyes, which will often be red and heavy-lidded from drugs. Alcohol and marijuana, in particular, cause the blood vessels in the eyes to expand, giving the bloodshot appearance. 

Psychological Signs a Teenager Is Using Drugs

While physical signs of drug abuse can be more obvious, psychological signs indicating your teenager is on drugs can be harder to notice. These might include your teen going through some of the following:

  • A sudden change in personality
  • Depression or anxiety
  • Hyperactive or unusually elated mood
  • Inability to focus
  • Less motivation

Where Is the Line Between Teen Experimentation and Addiction?

The line between teen experimentation and addiction is crossed when use becomes frequent, compulsive, and interferes with daily responsibilities or relationships. Experimentation is often occasional and socially influenced, while addiction involves dependence, withdrawal symptoms, and a loss of control over substance use. 

Occasional curiosity may not signal a problem, but when substance use begins to affect your child’s mood, behavior, relationships, or school life, it’s a sign that something more serious is developing. If something feels off, it’s worth paying attention. You’re not overreacting by seeking answers, and you don’t have to navigate this alone. Support, understanding, and early guidance can make a meaningful difference for both you and your child.

When Should I Step In if I Suspect My Child Is Addicted to Drugs?

As a parent, you can never intervene too soon. If a teen displays some aforementioned signs of drug use and a parent is concerned, it’s important to get to the bottom of it. Parents should try taking the straightforward route first. Direct questions like “Have you been smoking?” are more comfortable than searching under the bed without the child’s knowledge. 

If your child continues to deny drug use but the warning signs persist, it may be time to take the next step: looking more closely. Invading your child’s privacy is never easy, and it can feel uncomfortable or even wrong. However, when it comes to your child’s health and safety, those concerns must be put aside. Sharing your concerns and explaining your reasons for searching their possessions can prevent difficult scenarios.

Common places to conceal alcohol, drugs, and other paraphernalia:

  • Small boxes or cases: jewelry boxes, pencil cases
  • Inside over-the-counter medicine containers
  • Inside mock soda cans or empty candy bags
  • In between or inside books

What Parents Can Do to Lower the Risk of Addiction

Parent and teenager sitting together, having an open and supportive conversation about drug use.

The best prevention is to talk with your teens. Spending time with them and maintaining open and honest relationships will create a safe environment for them. Secure children won’t feel the need to turn to drugs to solve their troubles or as an escape from challenges. Listen to your teen’s opinions and questions about various substances. Staying informed on the topic is important so you can explain it to your child. Understanding factors that contribute to substance use and setting a positive example yourself makes a meaningful difference.

The Main Factors in Teen Drug Abuse: Know The FACTS

The five main factors that contribute to a high risk of teenage addiction are summarized in the acronym FACTS:

Family history- research shows that genetics play a big role in substance addiction

Age of first-time use- the younger to start, the more likely to develop an addiction

Craving- young teenage minds can develop cravings for substances they use

Tolerance- when used early on, teenagers can develop a high tolerance to drugs

Surroundings- exposure to drugs & alcohol when young, “normalizes” the use of them

How Being a Positive Role Model Helps Protect Your Child

Ethical values and behaviors are best learned from the people who practice them, rather than through lectures. If a teen witnesses his parents using alcohol or substances on a regular basis, they’ll naturally be drawn to them as well. Since alcohol, nicotine, and tobacco are legal for adults, teens can mistakenly view them as safe or acceptable for their own use.

Guiding Your Teen Toward Healing and Recovery

Looking out for your child’s best interests is a parent’s top priority. If you see signs of drug abuse in your child, getting them help as early as possible is crucial. Avenues Recovery offers drug rehab for young adults with various treatment plans to suit individual needs and is targeted specifically to teens. We will partner with you to ensure your teen receives the right support to move toward recovery. 

Contact us to hear more about how we can support you and your child. Your teen deserves better than a life of addiction, and is capable of getting there!

FAQs on Signs a Teen Is Addicted

What substances are teens most commonly abusing?

Alcohol, marijuana, nicotine (including vaping), and prescription medications are among the most commonly abused substances by teens. 

Are signs of drug abuse in children different from signs of drug use in young adults?

The main difference between drug abuse signs in children and drug use signs in young adults lies in behavior and development. Children may show sudden mood swings, secrecy, or a drop in grades. Young adults may exhibit financial issues, risky behavior, or problems at work or in relationships.

How common is teen drug use in the U.S.?

Recent data show teen drug and alcohol use remains a significant concern in the U.S.: about 36.8% of teens have misused a drug by 12th grade, and millions report recent use of substances such as marijuana and alcohol. 

What help is available if my teen is addicted to drugs?

Substance use treatment for teens ranges from outpatient therapy and counseling to specialized teen rehab programs. A professional assessment can guide the best approach for your child’s needs.

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