Why Am I Losing More Hair in Fall? Seasonal Shedding Explained
Why Am I Losing More Hair in Fall?
The Shedding Season Explained
By Kelly Moreno Vindel | The Scalp Report
Every fall, I get an influx of concerned clients — and messages from people who aren't clients yet — asking the same question: "I'm losing so much more hair than usual. Is something wrong?"
Most of the time, the answer is: you're completely normal. Fall shedding is real, it's documented, and it happens to a lot of people. Here's what's actually going on — and how to tell the difference between seasonal shedding and something worth paying closer attention to.
What Is Seasonal Hair Shedding?
Hair goes through a natural growth cycle with four phases: growth (anagen), transition (catagen), resting (telogen), and shedding (exogen). At any given time, most of your hair is in the growth phase — but a portion is always in the resting or shedding phase.
Research suggests that humans experience a natural increase in hair shedding in the fall — particularly in September and October. One theory is that during summer, hair stays in the growth phase longer (possibly a biological holdover to protect the scalp from sun exposure), meaning more hairs enter the shedding phase simultaneously a few months later.
The result: more hair in your brush, on your pillow, and in the shower drain in fall. For most people, this resolves on its own within a few months.
How Much Shedding Is Normal?
Losing 50–100 hairs per day is considered within the normal range. During seasonal shedding, that number can temporarily increase. The key word is temporarily — if the increased shedding resolves within 2–3 months, it's most likely seasonal.
If you're seeing clumps, bald patches, or shedding that doesn't slow down after a few months, that's when it's time to look deeper.
What Makes Seasonal Shedding Worse
Certain factors can amplify fall shedding beyond the seasonal baseline:
Summer damage. Sun exposure, heat styling, chlorine, and salt water all stress the hair and scalp. If your hair went through a rough summer, you may see more fallout as a result.
Nutritional depletion. Iron and vitamin D levels often dip in fall — and both are closely linked to hair growth and density. If you've been eating less during summer or spending less time outdoors as the season changes, these levels can drop.
Stress. If you experienced significant stress 2–3 months ago, you may be seeing the effects now. Stress-related shedding (telogen effluvium) is delayed — the hair falls out months after the stressful event, not during it.
Scalp health. A scalp with chronic inflammation, buildup, or compromised circulation doesn't provide an ideal environment for hair to re-enter the growth phase after shedding. This can extend the shedding period or slow regrowth.
How to Support Your Hair Through Seasonal Shedding
Nourish from the inside
Focus on iron-rich foods (leafy greens, lentils, red meat), protein, and foods high in biotin and zinc. Consider getting bloodwork done to check your iron, ferritin, and vitamin D levels if shedding seems excessive.
Support your scalp
A healthy scalp with good circulation is the best environment for hair to regrow after a shedding phase. Scalp massage — even just a few minutes a few times a week — stimulates blood flow to the follicles and can support regrowth.
Be gentle
Avoid tight hairstyles, harsh brushing, and excess heat styling during shedding periods. Handle hair gently when it's wet, as it's most vulnerable to breakage then.
Don't panic
Stress about shedding can actually make shedding worse — stress is one of the most significant triggers of telogen effluvium. Recognize that seasonal shedding is normal, monitor it, and take supportive action rather than reactive action.
When to Seek Professional Help
Get a scalp analysis or speak with a professional if:
Shedding is accompanied by scalp itching, pain, or visible patches
You notice thinning concentrated in specific areas (temples, crown, part line)
Shedding doesn't decrease after 3 months
You've had a major health event, hormonal shift, or significant stressor in the past 3–6 months
A professional scalp analysis with imaging can show the health of your follicles and help determine whether what you're experiencing is truly seasonal — or something that needs a more targeted approach.
You Don't Have to Figure It Out Alone
Shedding is stressful, even when it's normal. If you're concerned about what you're seeing, I'm here to help assess what's actually happening on your scalp and build a plan that supports your hair health long term.
👉 Book a scalp analysis in San Diego
Kelly Moreno Vindel is an independent hairstylist in San Diego specializing in scalp wellness, lived-in color, and precision cutting. Located at 435 Tenth Ave, San Diego, CA 92101
