Hair Loss in Men: Common Causes and What to Do

By Noophoric Editorial Team Updated August 31, 2026

The most common cause of hair loss in men is androgenetic alopecia, also called male pattern hair loss, but sudden shedding, alopecia areata, traction, scalp disease, medication, and nutritional or medical problems can create different patterns. Treatment works best when the cause is identified early.

1. Male pattern hair loss

Androgenetic alopecia is driven by genetics and follicle sensitivity to dihydrotestosterone. Susceptible follicles gradually miniaturize, producing shorter and finer hairs until the scalp becomes more visible.

Common patterns include temple recession, a maturing M-shaped hairline, crown thinning, or progression across the top while the sides and back remain denser. The process is gradual and can begin after puberty.

2. Telogen effluvium

Telogen effluvium causes diffuse shedding after more follicles enter the resting phase. Triggers include high fever, major illness, surgery, rapid weight loss, severe stress, medication changes, or undernutrition.

Shedding often begins two to three months after the trigger. It can occur at the same time as pattern loss and make underlying thinning suddenly more obvious.

3. Alopecia areata

Alopecia areata is an autoimmune condition that often produces smooth, round or oval bald patches. It can also affect the beard, eyebrows, eyelashes, or body hair. Nail pitting may occur.

A dermatologist can confirm the pattern and discuss corticosteroids or newer immune-directed treatments based on extent and severity.

4. Traction alopecia

Tight braids, cornrows, buns, dreadlocks, extensions, helmets, or other repeated tension can damage the hairline and other stressed areas. Early traction loss may recover after the style changes. Long-standing inflammation and scarring can become permanent.

Pain, stinging, bumps, or broken hairs mean the style is too tight.

5. Scalp infection or inflammation

Fungal infection, psoriasis, seborrheic dermatitis, folliculitis, and scarring alopecias can cause scale, redness, itching, pain, pustules, crust, broken hairs, or permanent loss.

Shiny scarred areas, burning, pus, or rapid patchy loss need prompt dermatology care.

6. Medication and medical conditions

Thyroid disease, iron deficiency, severe nutritional deficiency, autoimmune disease, and other conditions can contribute. Some medications can trigger shedding. Do not stop a prescription abruptly. Ask whether the timing fits and whether testing is needed.

How to identify your pattern

Temples or crown: pattern loss is more likely.
Diffuse full-length shedding: consider telogen effluvium.
Smooth round patches: consider alopecia areata.
Hairline with broken strands: consider traction.
Scale, pain, or pustules: consider scalp disease.
Short frayed pieces: breakage rather than root shedding.

Photograph the hairline, temples, crown, and part monthly under the same lighting. A dermatologist can use scalp magnification, a pull test, blood work, or biopsy when the diagnosis is uncertain.

Evidence-based treatment for male pattern hair loss

Topical minoxidil

Minoxidil is available without a prescription and can reduce loss, stimulate growth, and strengthen existing hairs. It usually requires six to twelve months for a fair assessment and continued use to maintain benefits.

Finasteride

Prescription finasteride reduces conversion of testosterone to DHT. The American Academy of Dermatology reports that it slows further loss in many men and can produce some regrowth, especially when started early. Sexual, mood, breast, and fertility considerations should be discussed.

Other options

Dermatologists may discuss low-dose oral minoxidil, dutasteride, platelet-rich plasma, low-level laser devices, or transplantation based on diagnosis, health, and preferences. Some uses are off-label.

Read our guide to hair-loss treatments by cause.

Nutrition and hair support

Adequate protein, calories, iron, zinc, vitamin D, and other nutrients support follicle function. Deficiency correction helps when a deficiency exists, while megadosing does not override genetics.

Noophoric Hair+ combines vitamins, minerals, botanicals, and amino acids, including biotin, zinc, and saw palmetto, to support fuller, stronger, healthier-looking hair.* It can complement a complete routine but should not delay cause-specific treatment.

When to get help

See a dermatologist for rapid loss, bald patches, scalp pain or burning, thick scale, pus, scarring, eyebrow loss, or a steadily receding hairline or crown. Early intervention can preserve more hair in many conditions.

Frequently asked questions

Is a receding hairline always genetic?

Male pattern loss is common, but traction, inflammation, and other conditions can affect the hairline. The pattern and scalp exam matter.

Can stress make men bald?

Stress can trigger diffuse shedding. It does not create genetic follicle sensitivity, but shedding can expose existing pattern loss.

Will lost hair grow back?

Telogen effluvium often recovers, while pattern loss usually progresses without ongoing treatment. Scarring loss may be permanent.

Can vitamins replace finasteride or minoxidil?

No. Nutrients support follicle health and correct deficiencies, while pattern loss often needs a treatment that targets its biology.

Bottom line

Male pattern loss is the most common cause, but it is not the only one. Identify whether loss is patterned, diffuse, patchy, tension-related, inflamed, or broken. Use evidence-based treatment early, protect the scalp and shaft, and support nutrition without relying on supplements as a substitute for diagnosis.

Sources

Evidence reviewed August 2026. This article is educational and is not a substitute for individualized medical diagnosis or treatment. *These statements have not been evaluated by the Food and Drug Administration. Noophoric products are not intended to diagnose, treat, cure, or prevent any disease.