The short answer
Most of what men are told about going bald comes from locker rooms and family lore rather than research. Hats, showers and razors get blamed because they are visible and easy to change. The real driver is invisible: how your hair follicles, mostly by inheritance, respond to a hormone called DHT.
MedlinePlus Genetics describes male pattern hair loss as related to androgens, specifically dihydrotestosterone (DHT), with a variety of genetic and environmental factors likely involved. It also notes that more than half of men over 50 have some degree of hair loss. With that in mind, here is how the common beliefs hold up.
| Belief | Verdict |
|---|---|
| Wearing hats makes you go bald | False for ordinary hats |
| Washing your hair every day speeds up hair loss | False |
| Baldness comes from your mother’s side | Half true |
| Shaving your head makes hair grow back thicker | False |
| Nothing can be done once it starts | False |
Myth 1: Hats make you go bald
An ordinary cap does not cause male pattern hair loss. The pattern, a receding hairline and thinning at the crown, follows where follicles are sensitive to DHT, not where a hat sits.
There is a grain of truth for very tight headwear. The AAD’s list of hair loss causes includes friction alopecia, where tight clothing or gear repeatedly rubs the skin, and traction alopecia, where hairstyles pull on the scalp over time. A painfully tight helmet or cap worn for hours every day is not ideal for the hair under it. A normal-fitting hat is fine, and it keeps the sun off your scalp, which matters more as hair thins.
Myth 2: Washing every day makes hair fall out
Daily shampooing does not cause hair loss. It just collects hairs that were already on their way out. The AAD notes that it is normal to shed between 50 and 100 hairs a day, and many of those come loose in the shower, which is why the drain can look alarming.
Washing less often does not save hair; it just means more of the shed hairs come out on wash day. The AAD’s hair care tips suggest washing based on how dirty or oily your hair gets, and say a person with straight hair and an oily scalp may want to shampoo every day. The same tips recommend gentle handling, such as patting hair dry instead of rubbing hard and limiting heat, which protects the strands you have.
If you are suddenly seeing far more than usual, that is worth attention. A wave of heavy shedding a few months after an illness, surgery or major weight loss is a different condition from pattern loss; our article on hair shedding on a GLP-1 explains it.
Myth 3: Baldness comes from your mother’s side
This one is half true. The only gene that MedlinePlus Genetics says has been confirmed to play a role is AR, which makes the androgen receptor, and variations in it seem to make follicle receptors more easily stimulated. AR sits on the X chromosome, and men get their single X from their mother. So the maternal side does matter.
But it is far from the whole story. A 2017 UK Biobank study of more than 52,000 men found over 250 independent genetic regions associated with severe hair loss, and noted particularly strong signals on the X chromosome alongside hundreds of others on the chromosomes inherited from both parents. A separate 2017 analysis of about 22,500 men identified 63 regions that together explained about 39% of the variation in early-onset male pattern baldness.
In practice, your father, both grandfathers and your uncles all offer clues. MedlinePlus sums it up by saying the inheritance pattern is unclear because many genetic and environmental factors are likely to be involved.
If several men on either side of your family thinned early, treat that as a reason to watch your own hairline closely. Photos of your temples and crown taken every few months, in the same light, show real change far better than a glance in the bathroom mirror, and they give a provider something concrete to assess.
Myth 4: Shaving makes hair grow back thicker
Shaving cuts hair at the surface of the skin. The follicle, where hair is actually made, sits below the skin and is untouched by a razor. A freshly shaved hair feels coarser as it grows back because it has a blunt cut end instead of a natural taper, not because the follicle has changed.
In male pattern loss, the follicle itself is the problem. MedlinePlus Genetics explains that too much stimulation by androgens can shorten the growing phase, producing shorter and thinner strands. Shaving does not speed that up or reverse it. Many men simply find a shaved head looks better than thinning hair, which is a perfectly good reason to shave.
Myth 5: Nothing can be done once it starts
Male pattern loss is progressive, but it is not untreatable, and earlier tends to be easier. Treatments work by reducing the effect of DHT on follicles, stimulating growth or both. The options and how they fit together are laid out in our hair loss treatment roadmap, and our pages on a receding hairline and a thinning crown cover the two most common patterns.
Two other beliefs worth retiring while you are at it: creatine is not a proven cause of hair loss, as our article on whether creatine causes hair loss explains, and the link between testosterone levels and baldness is more about follicle sensitivity than about how much testosterone you have.
How Ultimate Male approaches hair loss
Our hair restoration service at San Gabriel and Downey starts by separating myth from pattern: a look at where you are thinning, how fast and what runs in your family, with labs when shedding or a nutrient gap might be involved.
PRP, which concentrates your own platelets and injects them into thinning areas, is the treatment offered in clinic. It is not FDA-approved for hair loss and the evidence is mixed to promising, so your provider will discuss where it fits alongside established medicines. Our page on whether PRP works for hair loss covers the research. For a straight read on your own hairline, book the free 10-minute phone call at 626-319-5261.
