Today, we’ll explore the science behind something many men worry about – Balding.
Specifically, we’re talking about male-pattern baldness – what causes it, why it affects men more often than women, and what the latest research says. Please stick with me till the end to get the full picture.
The Real Villain in Most Cases
About 95% of the time, baldness is purely genetic. The condition, called androgenetic alopecia, is commonly known as male-pattern baldness.
It’s characterized by a receding hairline and gradual thinning of hair, and it’s caused by sensitivity to a byproduct of testosterone — dihydrotestosterone (DHT).
Since males produce testosterone throughout their lives, this condition is much more common in men.
That said, a small fraction of women also experience androgenetic alopecia — though it’s rarer and less intense.
How Does DHT Cause Hair Fall?
The process begins with increased activity of androgen receptors in the hair follicles. These receptors respond to androgens like DHT, a by-product of testosterone.
When DHT binds to these receptors, it causes the follicles to shrink — a process called miniaturization.
As the follicles get smaller, the growth phase (anagen phase) of each hair becomes shorter, and the strands grow thinner and weaker. Eventually, these follicles stop producing new hair, leading to baldness.
The Typical Pattern of Baldness
Hair thinning usually starts on the top of the head near the temples, leaving a horseshoe-shaped ring of hair around the sides and back.
Next, the front hairline recedes, and the bald area gradually expands backward.
The Norwood Classification helps describe the stages of male-pattern baldness — from mild recession to advanced stages where only the sides and back retain hair.
Stage 1: No visible hair loss — just a normal head of hair.
https://www.healthline.com/health/norwood-scale
Stage 2: Slight thinning near the temples — the “M-shape” starts to appear.
Stage 3: The receding hairline becomes more obvious, especially at the front.
Stage 4: Noticeable bald spot at the crown (top of the head).
Stage 5: The bald spot and front recession start to merge.
Stage 6: Only a thin horseshoe of hair remains around the sides and back.
Stage 7: The final stage — most of the scalp is bald, with just a rim of hair left.
When It’s Not Genetic
As mentioned earlier, about 95% of baldness is hereditary. But in rare cases, hair loss can result from other factors such as:
1. Alopecia Areata – An autoimmune disorder where the body’s immune system mistakenly attacks healthy hair follicles, leading to patchy bald spots.
2. Telogen Effluvium – Temporary hair loss caused by severe stress, illness, hormonal changes, or rapid weight loss.
3. Nutritional Deficiency – Low intake of protein, iron, or vitamin D can weaken hair growth.
If you experience unusual or sudden hair loss, it’s best to consult a dermatologist. Depending on the cause, they may recommend medications, laser therapy, or, in advanced cases, hair-transplant surgery.
Baldness in Women
Ladies, take note. Although baldness is far more common in men due to testosterone, female-pattern hair loss can also occur.
It usually begins at the crown or along the parting, and over time, the part line widens.
In women, this happens not because of excess testosterone, but often due to a drop in estrogen — particularly after menopause or hormonal imbalance.
The Ludwig Scale helps classify the stages of female-pattern baldness.
Stage I: Hair starts thinning along the parting- the middle line looks wider.
https://wimpoleclinic.com/blog/ludwig-scale-causes-stages-treatment/
Stage II: Thinning becomes more noticeable across the crown.
Stage III: Severe thinning — the top of the scalp becomes visibly bald, though the hairline at the front usually stays.
Take-Home Message
Baldness, especially in men, is mostly genetic. While you can’t change your genes, you can control other contributing factors — such as stress, nutrition, and overall scalp health.
Understanding the science behind baldness is the first step toward managing it better — and maybe even preventing further loss.
Thanks for sharing