Notice More Hair Falling Out Than Normal? It Could Be Seasonal Hair Shedding.

Why Is My Hair Falling Out in September?

If you’re pulling more strands from your brush or spotting extra hair in the shower drain, don’t panic — it might be seasonal hair shedding.

Humans, just like animals, have natural hair cycles. During summer, more hairs shift into the resting (telogen) phase. About 2–3 months later — in August, September, and October — those hairs shed. That’s why fall hair loss is a common and normal experience.

What Causes Seasonal Hair Shedding?

Several factors contribute to this cycle:

• Sun exposure & UV stress – Summer rays can damage hair shafts, making them more fragile.

• Seasonal hormone shifts – Changing daylight hours influence melatonin and prolactin, both connected to hair growth cycles.

• Lifestyle patterns – Hydration, stress, and dietary changes in summer often set the stage for shedding later on.

When Hair Loss Isn’t Just Seasonal

While seasonal shedding usually resolves on its own, sometimes hair loss signals deeper issues. If your shedding feels heavy or continues past October, it may be worth investigating nutrient deficiencies or other health factors.

Key nutrient deficiencies linked to hair loss include:

• Iron & Ferritin – Low iron is one of the most common causes of thinning hair.

• Zinc – Essential for follicle repair and protein synthesis.

• Vitamin D – Deficiency is linked to hair thinning and poor regrowth.

• B Vitamins (especially Biotin & B12) – Important for red blood cells and keratin production.

• Protein – Since hair is made of protein, low intake can trigger shedding.

What You Can Do About Fall Hair Loss

• Don’t stress short-term shedding. Seasonal hair shedding usually slows down in a couple of months.

• Check your nutrition. Iron-rich foods like organ meats (relax, there are supplements for this!), lentils, and dark leafy greens support healthy growth.

• Test, don’t guess. Ask your practitioner about checking ferritin, thyroid markers, and vitamin D if shedding persists.

• Care for your hair gently. Avoid excessive heat styling, hydrate well, and keep your scalp healthy.

Bottom Line

If you’re noticing more hair falling out in September, you’re not alone — it’s likely just seasonal hair shedding. But if the shedding continues or pairs with symptoms like fatigue, brittle nails, or thyroid imbalances, it may be time to look deeper at nutrients and overall health.

Sometimes it’s just the season. Sometimes it’s your body asking for more support.etimes it’s the calendar. Sometimes it’s a nutrient gap. And sometimes, it’s both.

Ready to Get to the Root of Your Hair Loss?

Seasonal hair shedding is normal, but if your hair loss feels excessive or doesn’t slow down, there could be deeper factors at play — from nutrient gaps to thyroid imbalances.

👉 Want some help? Schedule a session with me. We’ll look at your unique picture, review your labs if you have them, and create a plan that supports healthy hair growth from the inside out.