Last updated: 01 June 2023 & medically reviewed by Hailey Shafir
As a parent, it can be hard to identify whether your child is using substances and even if they are, it’s even harder to accept they may be struggling with an addiction. Behavior changes, risk-taking, moodiness, and an increased desire for peer acceptance are normal parts of adolescent development, but they also can place teens at higher risk for developing substance use disorders. Increased supervision and monitoring are some of the best ways that parents can detect early signs of substance use disorders in teens, helping them get early treatment.
Key takeaways:
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In 2020, 20.5% of 8th graders, 40.7% of 10th graders, and 53.3% of 12th graders reported underage drinking in the past year
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Of teens who reported abusing prescription medication, 60% reported getting the medication from either a friend or relative, and many steal them from their parent’s medicine cabinet
- Waiting or ignoring the early warning signs can put your teenager at risk of becoming addicted, overdosing, or making other decisions that could have lasting impacts on their health, life, and future
Table of contents
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Statistics on teen substance use
Experimentation with drugs and alcohol in adolescence is common, and some types of substances are more common than others in teens. Below are some statistics from the 2020 Monitoring the Future Survey, one of the largest and most comprehensive surveys on drug use trends among kids and teens in the US: [1][2]
Two out of three teens will drink alcohol before they graduate from high school
In 2020, 20.5% of 8th graders, 40.7% of 10th graders, and 53.3% of 12th graders reported underage drinking in the past year
Vaping nicotine is increasingly common with 16.6% of 8th graders, 30.7% of 10th graders, and 34.5% of 12th graders reporting vaping in the past year
Regular use of marijuana is also rising in teens, with 11.4% of 8th graders, 28% of 10th graders, and 35.2% of high school seniors reporting smoking marijuana in 2020
The number of teens who report vaping marijuana in 2020 is also rising, with 8.1% of 8th graders, 19.1% of 10th graders, and 22.1% of 12th graders reporting past-year use
In 2020, 15.6 of 8th graders, 30.4% of 10th graders, and 36.8% of 12th graders reported using an illicit substance
Nearly 5% of 12th graders report misusing a prescription medication
Of teens who reported abusing prescription medication, 60% reported getting the medication from either a friend or relative, and many steal them from their parent’s medicine cabinet
Teens and adolescents are reported to have the highest rates of inhalant abuse, with between 13.1 and 16.1% of 8th graders reporting use. Inhalant abuse can include glue-sniffing, aerosol abuse, and huffing whippet canisters.
These statistics help to demonstrate that teen drug abuse is surprisingly common, making it more important than ever for parents to be able to identify the early signs of substance use, abuse, and addiction in their children.
Signs and indicators of drug and alcohol use in teens
Some of the indicators and signs of drug and alcohol use in teens are listed below. While not all of these signs will be present, parents should be vigilant, watching their teen for any changes in mood, behavior, peer group, or activities.
Physical signs of substance use
Some of the physical signs of substance use may include: [3]
Bloodshot eyes
Enlarged or very small pupils
Frequent nosebleeds
Changes in appetite or sleep patterns
Sudden weight loss or weight gain
Seizures without a history of epilepsy
Deterioration in personal grooming or physical appearance
Marks or bruises, including needle marks on arms, legs, or feet
Unusual smells on breath, body, or clothing
Shakes, tremors, slurred speech
Possession of drug paraphernalia
Behavioral signs of alcohol or drug abuse
Here are some of the behavioral warning signs of substance use: [3]
Academic or behavioral problems at school
Changes in peer group
Disinterest in hobbies or activities previously enjoyed
Being overly secretive or evasive
Changes in routine or sleep schedule
Neglected hygiene or physical appearance
Stealing money or valuables
Spending money without being able to account for it
Isolation and social withdrawal
Finding paraphernalia, such as pipes, baggies, rolled-up notes, etc.
Demanding more privacy, locking doors, and avoiding eye contact
Mood swings
Sudden change in relationships, friends, etc
Frequently getting into trouble (arguments, fights, accidents, illegal activities)
Using incense, perfume, air freshener to hide drug smells (marijuana smoke, etc)
Using eye drops to mask bloodshot eyes and dilated pupils
Related: How alcohol abuse affects appearance
Psychological warning signs of alcohol or drug abuse
Some of the psychological and mental health signs that can indicate substance use include: [3]
Unexplained, confusing change in personality and attitude
Sudden mood changes, irritability, anxiety
Periods of unusual hyperactivity or agitation
Inability to focus, appearing spaced out or lethargic
Appears fearful, withdrawn, anxious, or paranoid, with no apparent reason
Becoming very angry or defensive when asked about substance or alcohol use
Deteriorating relationships with friends and family
Trouble focusing and concentrating
Related blog: Substance use among adolescents remains low in 2022
What to do if you notice signs of substance abuse
If you are a parent concerned that your child may be abusing drugs or alcohol, such as binge drinking or taking an illicit drug, it’s important to take action immediately. Waiting or ignoring the early warning signs can put your teenager at risk of becoming addicted, overdosing, or making other decisions that could have lasting impacts on their health, life, and future.
Some of the important steps parents can take to reduce their child’s risk of substance use include:
Verify whether a young person is abusing substances by administering a home drug test or asking their pediatrician to administer a drug test
Look in your child’s phone, room, and personal belongings for substances or paraphernalia
Initiate open conversations about drug and alcohol use, including working to educate them about the short and long-term risks
Help to keep your child safe by not allowing them to drive if you suspect they are intoxicated
Take your child to the ER if you suspect they have overdosed on alcohol or other drugs like opioids or sedatives
Know where your child is, who they are with, and what they are doing at all times
Use parental controls to limit their access to explicit content online, including drug and alcohol-related content
Monitor your teens spending by getting access to their bank account, overseeing their use of cash and debit cards
Get your teen treatment if you suspect they are struggling with substance use or mental health condition
Final thoughts
Knowing the signs of drug use in teens can help you to intervene before they develop a substance use disorder. Also, parental supervision and monitoring are some of the best and most proven ways to help keep your child safe and prevent their risk of developing an addiction.
