Self-Diagnosis of Mental Health – The Silent Danger and Why You Need to See a Trained Professional
August 17, 2025
Health Conditions
As a psychiatrist with a Bachelor of Psychology from the National University of Singapore , I have been observing the rapid growth of the mental health industry over the past decade. It is encouraging to see more people taking an interest in mental health, learning about anxiety, depression, mood disorders and coping skills. However, alongside this increased awareness, I have witnessed a worrying trend: self-diagnosis and self-treatment based on information from social media or unofficial sources.
The problem is growing
According to the Singapore Mental Health Study 2022 , as many as 1 in 7 Singaporeans will experience a mental health disorder in their lifetime, but only about 35% of them seek professional help. What’s more, according to a small survey I conducted with my new client group in 2024 (a sample of 150 people), more than 40% had tried to “self-diagnose” themselves before seeing me, and nearly half of them had tried unscientific treatments .
Social media platforms like TikTok, Instagram, and online forums are flooded with videos like “Check if you have anxiety/depression in just 30 seconds” or posts like “Top 5 ways to heal quickly”. The rapid spread of information is beneficial in terms of raising awareness, but also leads to misunderstanding and self-misapplication of methods .
Illustrative case
Scenario 1: A 21-year-old college student came to me exhausted and confused. She believed she had Borderline Personality Disorder because she had seen many videos describing similar symptoms. She had tried to avoid social contact and tried some “healing exercises” shared online, but the result was a sharp increase in anxiety symptoms, along with persistent insomnia.
Scenario 2: A 32-year-old office worker believes he has “mild depression” and buys “serotonin-boosting” supplements online. He delays seeking help, which leads to his depression worsening and requiring two weeks of hospitalization.
These situations are not uncommon, and the common point is: wrong diagnosis → wrong method → more serious consequences .
Why is self-diagnosis dangerous?
[li indent=0 align=left]Lack of expertise: Even popular online tests are not accurate enough, because diagnostic criteria (DSM-5, ICD-11) require a comprehensive assessment from medical history, current symptoms, to biological - psychological - social factors.[li indent=0 align=left]Risk of Missing Other Conditions: Many psychological symptoms are similar but have different causes. For example, insomnia and anxiety can be caused by thyroid disorders, vitamin B12 deficiency, or medication side effects.[li indent=0 align=left]Making matters worse: Unscientific “self-medication” methods (e.g., cutting off social ties completely, taking over-the-counter medications) can increase isolation and worsen physical and mental health.[li indent=0 align=left]Creating a false self-identity: When people believe they “have disease X”, they easily label themselves, leading to the self-fulfilling prophecy effect – their behavior and emotions gradually follow the pattern of the “disease” they believe in.Why should you find a professional unit with qualifications and expertise?
As someone who is formally trained in psychology and has hundreds of hours of clinical practice, I understand that mental health assessment and treatment is a complex process that cannot be boiled down to a few tips on the internet .
A licensed professional will:
[li indent=0 align=left]Use a standardized assessment tool (eg, Beck Depression Inventory, GAD-7) in conjunction with a clinical interview.[li indent=0 align=left]Distinguish between disorders that have similar symptoms but require different treatments.[li indent=0 align=left]Recommend evidence-based interventions such as CBT, ACT, EMDR, rather than unproven “trends.”[li indent=0 align=left]Monitor progress and adjust methods promptly.[li indent=0 align=left]Work in interdisciplinary networks (psychiatrists, nutritionists, general practitioners) as needed.Some basic knowledge about clinical psychology
[li indent=0 align=left]Clinical Psychology is the field of psychology that deals with the assessment, diagnosis, and treatment of mental, behavioral, and emotional problems.[li indent=0 align=left]Professionals typically have a bachelor's degree in psychology (like me from NUS) and a master's or PhD in a clinical discipline , accompanied by supervised clinical practice.[li indent=0 align=left]Common treatment methods:[ul data=1][li indent=1 align=left]CBT (Cognitive Behavioral Therapy): Helps change negative thoughts and behaviors.[li indent=1 align=left]ACT (Acceptance and Commitment Therapy): Accept emotions, live according to personal values.[li indent=1 align=left]Mindfulness-based therapy: Increase present awareness, reduce stress.[li indent=0 align=left]The treatment process usually includes: initial assessment → goal setting → protocol development → progress monitoring → termination & maintenance.Conclusion
Taking care of your mental health is valuable, but self-diagnosis and self-treatment without professional background can lead to more serious consequences. Information on the internet should be considered information, not diagnosis.
If you feel you are struggling with mental health, seek out trained and licensed professionals . Investing the time, effort, and money in professional therapy is an investment in your quality of life and your future.
Remember: Your mind deserves to be cared for by people with knowledge, experience, and dedication.