Hair Loss in Canada: Common Causes and Treatment Options

Hair loss affects millions of Canadians and can be caused by genetics, hormonal changes, medical conditions, medications, or stress. Understanding the cause is important because treatment varies accordingly. The most common type is androgenetic alopecia (pattern hair loss), which affects approximately 50% of men over 50 and about 40% of women during their lifetime. It is genetically driven and progressive. Other causes include telogen effluvium (temporary shedding triggered by stress, illness, or hormonal changes), alopecia areata (an autoimmune condition causing patchy hair loss), thyroid disorders, iron deficiency, and medication side effects. Treatment options depend on the cause. For androgenetic alopecia, Health Canada-approved options include minoxidil (topical, available over-the-counter) and finasteride (oral, prescription required). These work best when started early. Other options include platelet-rich plasma (PRP) therapy, low-level laser therapy, and hair transplant surgery for advanced cases. For hair loss caused by underlying medical conditions, treating the root cause often resolves the shedding. Blood tests for thyroid function, iron levels, and hormonal panels can help identify treatable causes. A physician can evaluate your hair loss through a telehealth or in-person appointment and determine whether further testing or specialist referral is needed. *This article is for informational purposes only.*

This article is for informational purposes only and does not constitute medical advice. Content reviewed by licensed Canadian physicians. Last updated February 2026.