Hair loss can begin earlier than many expect. By the age of 40, more than half of men will notice signs of hair thinning. Often, it begins at the crown—an area that’s hard to monitor yourself. Understanding the most common causes is the first step toward managing or slowing hair loss.
Top 5 Causes of Early Hair Loss in Men
1. Androgenetic Alopecia (Male Pattern Hair Loss)
This is the most common cause of hair loss in men, driven by genetics and hormones. The androgen dihydrotestosterone (DHT) shortens the hair growth phase and shrinks follicles over time. As follicles miniaturise, they produce finer, lighter hairs. Eventually, they stop growing hair altogether.
Learn more about our approach to treating hereditary hair loss.
2. Stress
Chronic or severe stress can lead to temporary hair loss. Often, the shedding appears a few months after the stressful event. Once stress levels stabilise, hair typically resumes its normal growth cycle.
3. Poor Diet
Hair follicles rely on key nutrients to function properly. Low intake of iron, zinc, vitamin D, protein, and healthy fats can weaken hair quality and trigger shedding. A balanced, nutrient-rich diet supports optimal scalp and follicle health.
4. Smoking
Research shows that smoking may impair blood flow to the scalp and damage hair follicles. Reducing or quitting smoking may support overall health and hair retention.
5. Illness or Scalp Conditions
Medical issues like thyroid imbalances, skin disorders, or infections can lead to temporary or patchy hair loss. In most cases, hair can regrow after the underlying issue is treated.
How to Identify the Cause
If you’ve noticed signs of thinning or increased shedding, the best first step is to speak with a trained advisor. An accurate diagnosis ensures that the chosen treatment aligns with the type and cause of your hair loss.
Book a consultation with a Hair Growth Advisor to receive tailored advice based on your needs and hair goals.
Treatment Options
- Prescription hair care: Access evidence-based options that may help manage further loss. Explore prescription treatments here.
- Procedure: For appropriate candidates, doctor-performed follicular implantation may restore density in thinning areas. Learn more about our method.
- Use of superannuation: Eligible patients may be able to access super to cover the cost of treatment.
Gro Clinic Locations
Visit us at one of our clinics across Australia and New Zealand: