A 16-year-old male high school student was brought to the local clinic by his mother due to increasing behavioural changes, including poor academic performance, irritability, and frequent absences from school. Over the past year, he had become increasingly withdrawn from family activities and had started associating with a new peer group known for risky behaviours.

Upon further questioning, the adolescent admitted to regularly using marijuana and occasionally experimenting with alcohol and prescription medications obtained from friends. He reported initially using these substances as a way to cope with academic stress and social pressure, but over time, the frequency of use increased, and he found it difficult to stop.

Physical examination revealed no acute findings, but the healthcare provider noted signs of psychological distress. The adolescent displayed symptoms of anxiety, sleep disturbances, and mood swings, which had escalated in the last few months. A brief mental health screening suggested possible underlying depression.

The public health team, recognizing the growing trend of substance abuse among adolescents in the community, provided the family with resources for addiction counselling and mental health services. The patient was referred to a substance abuse program tailored for young people and received ongoing psychological support. The case highlighted the need for early public health interventions, community awareness programs, and access to mental health care to address substance abuse among adolescents.