How to Spot the Signs of Substance Abuse Early
Substance abuse rarely begins with obvious warning signs. It often develops quietly, behind closed doors, until consequences become impossible to ignore. At Bali Harmony Rehab, we believe that knowing what to look for can empower early intervention and save lives.
Whether someone is struggling with alcohol, prescription medication, or illicit drugs, these are the most common signs to watch for.
Physical Warning Signs
Neglected hygiene or sudden weight changes
Bloodshot eyes or unusual pupil sizes
Frequent nosebleeds – particularly linked to cocaine use
Shaking or tremors – which may suggest withdrawal symptoms
Unsteady movements and slurred speech – often caused by alcohol or sedatives
Behavioural Red Flags
Unpredictable mood swings or irritability
Avoiding questions, secrecy about whereabouts or activities
Failing to meet work or school obligations
Unexplained borrowing or missing valuables
Engaging in dangerous behaviours, like driving under the influence
If you’re noticing behaviour that’s concerning, read our article on committing to rehab for advice on what steps to take next.
Emotional & Psychological Changes
Paranoia or anxious thoughts
Loss of interest in hobbies and social activities
Persistent low mood or hopelessness
Memory loss, difficulty concentrating, or confusion
Hallucinations or delusions in more advanced stages
For some individuals, substance use alters dopamine levels. Learn more about dopamine therapy in addiction recovery.
Social Signs That Something’s Not Right
Withdrawing from friends and family
Changing social circles
Tension and conflict in close relationships
Abandoning education, career, or long-term plans
Trouble with the law
If someone is already in recovery but struggling to stay stable, a sober living programme in Bali can provide essential structure and support.
When to Act
If you’re seeing more than one of these signs, don’t ignore them. Addiction is progressive — and the earlier the intervention, the greater the chance of long-term recovery.
We’re Here to Help
At Bali Harmony Rehab, we provide supportive, holistic treatment for individuals at every stage of the recovery journey. Whether you need information, emotional support, or help arranging a safe intervention, we're here.
We are here to support you every step of the way, whether that is information, support or even eventually rehab. 👉 Reach out to us today
Reviewed by:
Dr. Amelia DN Sugiharta
Consulting Psychiatric Doctor, Bali Harmony Rehab
Last medically reviewed: July 2025