Reviewed by the HyaluFlow Health Editorial Team | Published: August 28, 2026 | Last Updated: August 28, 2026
Quick Answer
Yes, some people notice more hair shedding in August and early fall. Research suggests hair growth cycles can vary by season, but increased shedding should not automatically be blamed on the weather. Stress, illness, diet changes, medications, and other conditions can also trigger excessive shedding.
Key Takeaways
- Hair shedding can follow a seasonal pattern.
- Late summer may bring increased shedding for some people.
- Seasonal shedding is different from progressive hair loss.
- Stress, illness, weight loss, and nutritional problems can also increase shedding.
- Persistent, patchy, or rapidly worsening hair loss deserves medical evaluation.
Why Does Hair Shedding Increase in August?
Hair naturally moves through growth, transition, resting, and shedding phases. A study of 823 healthy women found seasonal variation in the hair cycle, including a higher proportion of resting-phase hairs during summer. Research: PubMed.
Other research has also reported seasonal variation in hair shedding, with late summer and early fall appearing to be important periods in some populations. However, seasonal shedding does not affect everyone in the same way.
1. More Hairs May Enter the Resting Phase
The resting phase, called telogen, occurs before a hair is naturally shed. If more follicles enter this phase around the same period, you may temporarily notice more loose hairs in your brush, shower, or on your pillow.
The exact biological reason for seasonal changes in hair cycling is not completely understood. Therefore, August shedding should be viewed as a possible seasonal pattern, not a diagnosis.
2. Summer Stress Can Add to Shedding
Seasonal changes are not the only explanation. Physical or emotional stress can trigger telogen effluvium, a temporary form of excessive hair shedding.
The American Academy of Dermatology explains that excessive shedding can occur after stressful events or significant changes affecting the body.
3. Heat and Sun Exposure May Affect Hair Health
Hot weather does not automatically cause permanent hair loss, but summer habits can increase hair damage. Frequent sun exposure, chlorine, salt water, heat styling, and rough handling can weaken the hair shaft and increase breakage.
Breakage can look like shedding, but the two are different. Broken hairs are often shorter pieces, while naturally shed hairs are usually full-length strands released from the follicle.
If your hair feels rough, dry, or unusually porous after summer exposure, you can use the HyaluFlow Hair Porosity Analyzer to better understand how your hair may respond to moisture and hair-care products.
4. Diet Changes Can Trigger Excessive Shedding
Rapid weight loss or inadequate intake of protein, iron, and other nutrients can contribute to increased hair shedding. Crash diets can be particularly problematic because hair growth is not an essential survival function, so the body may redirect resources elsewhere.
The American Academy of Dermatology notes that nutritional deficiencies, medical conditions, medications, and other factors can contribute to hair loss.
5. Seasonal Shedding Is Not the Same as Hair Loss
Normal shedding means individual hairs are completing their natural growth cycle. Hair loss can involve progressive thinning, reduced growth, damaged follicles, or conditions such as hereditary hair loss and alopecia.
The American Academy of Dermatology hair-loss guide emphasizes that hair loss has many possible causes, so identifying the underlying cause matters before choosing treatment.
6. How Can You Tell If August Shedding Is Normal?
A temporary increase in loose hairs without obvious scalp thinning is generally less concerning than progressive thinning, a widening part, a receding hairline, or bald patches.
Do not obsess over counting every strand. Instead, watch whether your shedding is changing over time and whether you are developing visible thinning or other scalp changes.
If you are unsure whether what you are seeing is normal shedding or actual hair loss, professional evaluation is more useful than relying on online guesses.
7. What Can You Do About Seasonal Hair Shedding?
Handle wet hair gently, avoid consistently tight hairstyles, limit excessive heat styling, and protect your hair from unnecessary environmental damage. Maintain a balanced diet with adequate protein and avoid extreme calorie restriction.
Do not automatically start supplements because your hair is shedding more. If a deficiency is suspected, a healthcare professional can determine whether testing is appropriate.
What the Science Says
| Finding | Evidence |
|---|---|
| Hair growth cycles can vary seasonally | Supported by observational research |
| Summer can have more resting-phase hairs | Supported by a study of 823 women |
| Late summer may coincide with increased shedding | Reported in seasonal hair research |
| Stress can trigger excessive shedding | Well-established cause of telogen effluvium |
| Every August shedding episode is harmless | Not supported |
Common Myths
Myth: More hair in the shower means you are going bald.
Not necessarily. Seasonal shedding and temporary telogen effluvium can increase loose hairs without causing permanent baldness.
Myth: August itself causes permanent hair loss.
No. Seasonal changes may influence the hair cycle, but persistent hair loss can have many other causes.
Who Should Pay Attention?
Consider speaking with a healthcare professional if shedding is sudden, severe, persistent, patchy, or accompanied by scalp symptoms. Early evaluation can help identify conditions that may need treatment.
Bottom Line
Increased hair shedding in August can be real, but it should not automatically be blamed on the season. Research supports seasonal changes in hair cycling, while stress, nutrition, illness, medications, and hereditary conditions can also affect hair shedding. Watch the pattern, protect your hair from damage, and seek professional advice if the change is significant or continues.
