Finding more hair than usual in your brush or shower drain is unsettling, and the first question most people ask is what causes hair loss. The answer is rarely a single thing. Genetics, hormones, stress, nutrition, medications and underlying health conditions can all play a part, and identifying the right one is the key to choosing the right solution.
Losing 50 to 100 hairs a day is generally considered part of the normal growth cycle. Trouble starts when shedding increases noticeably, when your hairline recedes, or when the scalp shows through in places it did not before.
Genetics and Hormones
Heredity is the leading culprit. Androgenetic alopecia, better known as male or female pattern hair loss, is the most common cause of hair loss worldwide. It runs in families and happens when hair follicles inherited with a sensitivity to the hormone DHT gradually shrink until they stop producing hair.
Men usually notice a receding hairline and thinning at the crown. Women tend to see a widening part and overall loss of density instead. If you want to understand how the problem begins beneath the surface, our article on the causes of hair loss from the roots explains how follicle health affects the strands you see.
Hormonal shifts matter too. Pregnancy, childbirth, menopause and thyroid disorders can all disturb the growth cycle, and conditions such as polycystic ovary syndrome may add to thinning in women.
Stress, Illness and Nutrition
Sometimes the scalp pays the price for what the whole body has been through. Telogen effluvium is a temporary form of shedding that typically appears about three to four months after a major stressor, such as a high fever, surgery, childbirth, rapid weight loss or a period of intense emotional strain.
Diet plays a supporting role. Low iron, inadequate protein, and deficiencies in nutrients like zinc or vitamin D have all been linked to increased shedding. Crash diets are a frequent, and often overlooked, trigger.
The encouraging part is that this type of loss is often reversible once the underlying trigger is treated, although regrowth can take months.
Medical Conditions and Medications
Alopecia areata is an autoimmune condition in which the immune system mistakenly attacks hair follicles, leading to sudden round bald patches. Scalp infections such as ringworm, inflammatory skin conditions and a compulsive hair-pulling habit called trichotillomania can also damage hair growth.
Certain medications list hair loss as a side effect. Examples include some chemotherapy drugs, blood thinners, retinoids, beta-blockers, and medicines used for depression, arthritis, gout or high blood pressure. Never stop a prescribed medicine on your own, though. Speak with your prescribing doctor first.
Hair Care Habits That Make It Worse
Everyday styling choices can quietly do harm. Tight ponytails, braids, extensions and other styles that pull on the roots can lead to traction alopecia, which may become permanent if the tension continues for years. Frequent bleaching, perming, chemical straightening and heavy heat styling weaken the hair shaft and cause breakage.
Men who lose facial hair in patches, or who want to restore density in the beard area, have options too, including a beard hair transplant in Egypt for suitable candidates once the cause of the loss has been diagnosed.
When to See a Specialist
A short spell of extra shedding after illness or stress often settles down alone. It is worth booking an assessment if any of the following applies:
- Shedding continues for more than three months.
- Your hairline is receding or the crown is visibly thinning.
- You notice round bald patches or broken hairs.
- The scalp is red, itchy, painful or scaly.
- Hair loss comes with fatigue, weight change, irregular periods or other symptoms.
A proper diagnosis usually starts with a medical history, a scalp examination and, when needed, blood tests to check iron, thyroid function and hormone levels. Only then can a suitable plan be recommended. Depending on the cause, that may involve medication, nutritional correction, or a structured hair loss treatment programme to slow shedding and support regrowth.
Is a Hair Transplant the Answer?
When hair loss is permanent and stable, such as in advanced pattern baldness, a transplant may be worth considering. It moves healthy follicles from a donor area, usually the back of the scalp, to thinning areas. It is not right for everyone, and being honest about the limits matters. Reading about the disadvantages of hair transplant surgery helps you set realistic expectations before deciding.
Technique matters as well. Modern methods differ in how follicles are extracted and implanted, so it helps to compare the main hair transplant techniques with your surgeon and understand which suits your hair type and goals.
Women considering surgery have different patterns of loss and different needs, so choosing among hair transplant clinics for women in Egypt is best done with a specialist who has experience treating female hair loss.
Frequently Asked Questions
What is the most common cause of hair loss?
Hereditary pattern hair loss (androgenetic alopecia) is the most common cause worldwide, affecting both men and women.
Can stress really cause hair loss?
Yes. Severe physical or emotional stress can push many hairs into the resting phase at once, causing noticeable shedding a few months later. This type is usually temporary.
Can nutritional deficiencies cause hair loss?
They can contribute. Low iron, protein, zinc and vitamin D are commonly linked to shedding, so blood tests are often part of the assessment.
Is hair loss permanent?
It depends on the cause. Shedding triggered by illness, stress or deficiencies is often reversible, while pattern baldness and scarring conditions tend to be long-term and need ongoing management.
When should I see a doctor about hair loss?
Get checked if shedding lasts more than a few months, if you notice bald patches, or if your scalp is inflamed or painful. Early diagnosis gives you more treatment options.
This article is for general information and does not replace a medical consultation. For a diagnosis tailored to you, book an appointment with Dr. Mohamed El-Sayed.
