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What Is Social Anxiety Disorder? Symptoms, Causes, Treatment
Social anxiety disorder is a diagnosable anxiety condition marked by persistent, intense fear of social or performance situations where a person might feel judged, embarrassed, or scrutinized — lasting at least 6 months and interfering with everyday life. It is one of the most common anxiety disorders in Canada: in 2022, 7.1% of Canadians aged 15 and over met the diagnostic criteria in the past 12 months, and among women aged 15–24 the rate reached 24.7%. It is distinct from ordinary shyness, and it responds well to therapy — cognitive behavioural therapy is considered the gold-standard treatment.
What is social anxiety disorder?
Social anxiety disorder (sometimes still called social phobia) is more than nervousness before a presentation or feeling shy at a party. According to the National Institute of Mental Health, a person with social anxiety disorder feels significant anxiety or fear in situations where they may be scrutinized, evaluated, or judged by others — speaking in public, meeting new people, dating, answering a question in class, or even eating in front of others.
The fear often feels uncontrollable and can shape daily life. People with social anxiety disorder may worry about a social situation for weeks in advance, and eventually start avoiding places or events that trigger the fear. In some cases, anxiety only shows up in performance situations — like giving a speech or playing an instrument on stage. That's what researchers call the "performance-only" subtype.
At Trillium, we work with clients across Waterloo Region and Ontario who are dealing with the full range of anxiety — from generalized anxiety to panic to social anxiety — through anxiety counselling with a Registered Social Worker or Registered Psychotherapist.
How is social anxiety disorder different from shyness?
Shyness is a personality trait — a preference for slower social warm-up, a smaller group of close friends, a quieter presence in a room. It's neither uncommon nor a problem to solve. Social anxiety disorder is different in three ways researchers consistently use to draw the line:
- Duration. The fear, anxiety, or avoidance is persistent — typically lasting 6 months or more.
- Interference. It significantly interferes with work, school, relationships, or normal routines — not just occasional discomfort.
- Intensity. Exposure to the feared situation almost always provokes anxiety, and the person either avoids it or endures it with substantial distress.
If you're shy but you can still take a class you're interested in, apply for the job you want, or grab coffee with a new friend without weeks of dread, that's on the shyness end. If those things feel impossible — or you routinely turn them down to protect yourself from the anxiety — that's closer to the social anxiety disorder end.
How common is it in Canada?
Social anxiety disorder is one of the most common mental health conditions in Canada, and its prevalence has risen sharply. According to Statistics Canada's 2023 report on mental disorders and access to mental health care:
- 7.1% of Canadians aged 15 and older met the diagnostic criteria for social phobia (social anxiety disorder) in the past 12 months in 2022 — more than double the 2012 rate of about 3.0%.
- 14.6% of Canadians had experienced it at some point in their life by 2022 — a 71% increase from 8.1% in 2002.
- Among young women aged 15–24, the 12-month prevalence was 24.7% in 2022, a fourfold increase since 2002 (6.1%).
Global reviews put the lifetime prevalence somewhere between 5% and 13% of the population, making it one of the most common anxiety disorders worldwide. Women are consistently affected at higher rates than men, and this gap is widest in adolescence and young adulthood.
Not sure if what you're feeling is social anxiety — or just how you're wired?
Our free 20-minute matching consult isn't therapy — it's a quick conversation with our intake team about what you're looking for, so we can match you with the therapist who may be a good fit.
Book a free matching consultWhat are the symptoms of social anxiety disorder?
According to NIMH, the signs of social anxiety disorder show up across three broad categories — physical, cognitive, and behavioural.
Physical symptoms
- Blushing, sweating, or trembling
- Rapid heart rate
- Mind going blank or feeling sick to the stomach
- Rigid body posture or overly soft voice
- Difficulty making eye contact
Cognitive symptoms
- Intense fear of being judged, embarrassed, or humiliated
- Analyzing your own performance afterward and finding fault
- Expecting the worst possible outcome from a social situation
- Worrying about a situation for days or weeks in advance
Behavioural symptoms
- Avoiding places where you'll have to interact with others
- Turning down opportunities (work, school, social) that would require exposure
- Using alcohol or substances to get through social situations
- Bringing a "safety person" to events, or leaving early to escape
Symptoms often start in childhood or adolescence and may resemble extreme shyness at first. Left untreated, the avoidance patterns tend to reinforce themselves and shrink a person's world over time.
What causes social anxiety disorder?
Like most anxiety disorders, social anxiety disorder develops through a combination of genetic, environmental, and neurobiological factors. Researchers point to a heightened fear response in the brain's threat-detection circuits, family history of anxiety, temperament (particularly behavioural inhibition in childhood), and environmental factors like bullying, humiliation, or an overprotective or overly critical upbringing. It is rarely traceable to one cause — most people describe it as something that built up over years.
What matters in practice is not the exact cause but the pattern. If avoidance and fear are shaping daily life now, treatment can help — regardless of where the pattern originally came from.
How is social anxiety disorder treated?
Social anxiety disorder is highly treatable. Both NIMH and CAMH describe cognitive behavioural therapy (CBT) as the leading psychotherapy for the condition — NIMH calls CBT the "gold standard."
CBT for social anxiety typically involves two paired components:
- Cognitive work. Identifying the thoughts that fuel the fear ("everyone will think I'm stupid," "I'll say the wrong thing"), examining the evidence for and against them, and building more accurate, more workable ways of thinking about social situations.
- Exposure therapy. Gradually and deliberately approaching the situations you've been avoiding, starting with lower-stakes ones and working up. This isn't about being "thrown in" — it's a structured, paced practice that teaches your nervous system that these situations aren't actually dangerous.
For some people, medication (usually SSRIs or SNRIs) is used alongside therapy, particularly if symptoms are severe. Medication decisions are made with a family physician or psychiatrist. Therapy on its own is effective for many people — most CBT protocols for social anxiety run 12 to 20 sessions.
Group CBT specifically for social anxiety has also been shown to be effective, and — perhaps counterintuitively — many people find the group format helpful because it provides built-in, structured social exposure with people working on the same challenges.
When to consider professional support
Consider reaching out to a therapist if you notice any of these patterns:
- You're turning down opportunities (a job interview, a class, a friendship, a date) because of the anxiety they'd bring
- You dread social situations for days or weeks in advance
- You use alcohol, substances, or "safety behaviours" to get through everyday interactions
- The anxiety is affecting your work, school, or close relationships
- You've been living with it for months or years and it hasn't shifted on its own
Trillium's therapists include Registered Social Workers and Registered Psychotherapists with training in CBT, exposure therapy, and other evidence-based approaches for anxiety. You can see the full team and approach on our anxiety counselling page.
If you're weighing whether therapy is the right step, the easiest way to start is a short conversation about what you're looking for — not a therapy session, and not an assessment. We'll help you find the Trillium therapist whose approach fits you best.
Or learn more about our anxiety counselling services.
Frequently asked questions
+What's the difference between social anxiety and just being shy?
What's the difference between social anxiety and just being shy?
Shyness is a temperament — a preference for slower social warm-up and quieter interactions. Social anxiety disorder is a diagnosable condition where the fear is persistent (typically 6 months or more), causes significant interference with work, school, or relationships, and involves either avoidance or intense distress in social situations. Many people are shy without ever having social anxiety disorder — and treatment for social anxiety disorder isn't about becoming an extrovert, it's about restoring choice.
+How common is social anxiety disorder in Canada?
How common is social anxiety disorder in Canada?
According to Statistics Canada's 2023 report, 7.1% of Canadians aged 15 and older met the diagnostic criteria for social phobia (social anxiety disorder) in the past 12 months in 2022, and 14.6% had experienced it at some point in their life — a 71% increase since 2002. Among young women aged 15–24, the 12-month prevalence reached 24.7% in 2022, up from 6.1% in 2002. It is one of the most common anxiety disorders in Canada.
+At what age does social anxiety disorder usually start?
At what age does social anxiety disorder usually start?
Social anxiety disorder most commonly starts in childhood or adolescence — often between ages 8 and 15. In its early stages it may look like extreme shyness or school avoidance. Without treatment, it tends to persist into adulthood, and avoidance patterns strengthen over time. Adult-onset social anxiety is possible but less common, and often follows a triggering event like public humiliation or a significant life change.
+Can social anxiety disorder be cured?
Can social anxiety disorder be cured?
"Cured" is not the language researchers use, but social anxiety disorder is highly treatable — most people who complete a course of CBT and exposure therapy experience meaningful, lasting reduction in symptoms. Many people reach a point where social situations are simply part of life again, not something to fear or plan around. Some people benefit from booster sessions during life transitions, but ongoing therapy is usually not required once the core work is done.
+What if I'm not sure whether I have it?
What if I'm not sure whether I have it?
You don't need a diagnosis to reach out. If social situations are shaping your day — what you say yes or no to, what you avoid, how much you worry beforehand — that's enough to warrant a conversation with a therapist. A therapist can help you understand what's going on and, if it is social anxiety disorder, walk you through the evidence-based approaches that help. If it's not, they can point you toward what might be a better fit.
Crisis Resources
If you or someone you know needs support right now, help is available:
- 988 Suicide Crisis Helpline (Canada-wide): call or text 9-8-8 — free, confidential, 24/7.
- Here 24/7 (Waterloo–Wellington crisis & mental health line): 1-844-437-3247.
- If someone is in immediate physical danger, call 911.
About the reviewer — Devon Jorge, MSW, RSW — Devon is a Registered Social Worker (MSW, RSW) at Trillium Counselling with training in CBT, EMDR, EFT, and the Gottman Method. She reviews Trillium's educational articles to keep them accurate, responsible, and aligned with current psychotherapy practice.
About this article — This article is intended for general education about mental health and the therapy process. It is not a substitute for professional diagnosis, treatment, or individualized mental health advice. If you have concerns about your mental health, please speak with a qualified health professional or contact local crisis services in an emergency.
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