Hair Loss

Why Does Hair Loss Happen?

Shedding some hair every day is perfectly normal. Hair naturally grows, rests and sheds as part of its normal cycle. In many people, around 50 to 100 hairs may be shed each day without this leading to visible thinning.

Hair loss becomes more noticeable when more hairs are shed than replaced, when the hairs start to grow back finer than before or when follicles gradually stop producing visible hair.

One of the most common causes is inherited pattern hair loss. In people who are genetically susceptible, certain follicles become sensitive to dihydrotestosterone, often shortened to DHT. Over time, those follicles shrink and produce shorter, finer hairs.

Men often notice a receding hairline, temple recession or thinning at the crown. Women are more likely to notice overall thinning across the top of the scalp or a widening of the parting, although patterns vary from one person to another.

What Can Affect Hair Loss

Although hair loss is often associated with ageing, it can affect younger adults and sometimes children too. Not every case is simple pattern baldness, and the surrounding symptoms often help point towards the real cause.

A stress-related compulsive behaviour known as trichotillomania can cause hair to be pulled out from the scalp, eyebrows or other parts of the body.

Hair loss can also be linked to illness, major physical stress, nutritional deficiency and significant weight loss. In some people, malnutrition or poor iron intake can affect the normal growth cycle. Pregnancy, childbirth and menopause may also play a role.

Both hypothyroidism and hyperthyroidism can be associated with thinning hair, which is why thyroid-related symptoms should not be ignored.

Other causes can include alopecia areata, certain medications, scalp inflammation, repeated use of harsh chemicals, excessive heat styling or traction from tight hairstyles and extensions.

Conclusion

Hair loss is common, but the reason behind it is not always obvious. Some forms are temporary, some are treatable and some may be suitable for a hair transplant assessment when the pattern is established and the donor area is strong enough.

Rather than assuming that every case of thinning is permanent baldness, the safer approach is to understand the cause first. In some cases that means medical assessment. In others, it may mean discussing whether a longer-term restoration plan is realistic.

If you are concerned about persistent thinning, a changing hairline or increasing scalp visibility, the next step is to seek appropriate advice and decide what is actually suitable for you.