The worry that their own child may be using drugs is stressful for many parents. Not every change in behaviour automatically means substance use – emotionalfluctuations and phases of demarcation are normal, especially during puberty. Nevertheless, there are certain warning signs that should be taken seriously and considered in the big picture.
Important: Individual signs are not evidence. Only the interaction of several changes over a certain period of time can indicate possible consumption.
Possible signs of drug use in adolescents
1. Changes in external appearance
- sudden weight loss or gain
- Pallor, dark circles, unkempt appearance
- noticeable changes in clothing style
- unusual odors on clothing or breath
2. Behavioral and personality changes
- severe mood swings, irritability or aggressiveness
- Withdrawal from family, disinterest in conversations
- Loss of previous interests and hobbies
- increased secrecy, excuses, or lies
3. Changes in everyday school or professional life
- Declining performance or concentration problems
- frequent lateness or absence
- Disinterest in school, training or plans for the future
4. Changes in the circle of friends
- sudden break off of contact with previous friends
- new friendships with significantly changed behavior
- Increased isolation from the family
5. Physical warning signs
- reddened or glassy eyes
- Conspicuous pupil changes (severely dilated or narrowed)
- uncoordinated movements, tremors
- frequent fatigue or unusual activity
Puberty or drug use? An important distinction
Many of the signs mentioned can also be part of a normal adolescent developmental phase. It is therefore crucial to:
- do several changes occur at the same time?
- do they last for a longer period of time?
- Are they increasingly intensifying?
An open, appreciative conversation is often the most important first step – much more effective than control or accusations.
How should parents react?
- Stay calm and don’t judge hastily
- Ask open questions instead of formulating accusations
- Communicate interest and concern honestly
- Offer support, not punish
In many cases, it makes sense to involve professional help at an early stage – for example through doctors, therapists or specialised addiction counselling centres.
Can drug tests be useful?
Rapid drug tests can help to create a factual basis – especially when conversations do not bring clarity.
Depending on the question, different types of tests can be considered:
- Saliva tests: suitable for very recent use
- Urine tests: reliable for detecting past consumption
Important: Tests should not be used secretly or as a means of exerting pressure , but transparently and explanatorily – ideally embedded in a conversation.
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Note: This article is intended for factual education and prevention. It does not replace medical, psychological or legal advice in individual cases.
