Hair Loss in Men: Causes, Diagnosis, and Treatment
Content owner/Author: Specialist Dr. Utkan Kızıltaç — Dermatology Specialist
Last medical review and update: September 10, 2026
What is the most common cause of hair loss in men?
The most common cause is androgenetic alopecia. In genetically susceptible hair follicles, the effect of dihydrotestosterone (DHT) leads to miniaturization over time.
How does it begin?
Thinning may occur at the temples, a receding hairline, or thinning at the crown. The process progresses at different rates from person to person.
Is it only passed down through the mother's side?
No. Male pattern hair loss is polygenic, and genetic traits inherited from both parents can play a role.
How is the diagnosis made?
History, dermatological examination, and trichoscopy are usually sufficient for most patients. In cases of sudden, widespread, or atypical hair loss, other causes such as telogen effluvium, alopecia areata, scarred alopecia, thyroid diseases, or deficiencies may be investigated.
What treatments are available?
Topical minoxidil and finasteride are among the primary options for suitable male patients. Dutasteride or low-dose oral minoxidil may be considered in selected patients; indications and regulatory status may vary by country.
Are platelet-rich plasma (PRP) and microneedling effective?
It may be considered as an adjunct option in some patients. However, it does not automatically replace basic medical treatments. Furthermore, the products and protocols used in mesotherapy applications are not standardized.
When should hair transplantation be considered?
Hair transplantation may be considered in patients with sufficient donor area, a clear diagnosis, and realistic expectations. Hair transplantation does not stop the natural course of androgenetic alopecia; medical treatment may be necessary to preserve the natural hair that is not transplanted.
Dermatologist's Note
In male pattern hair loss, the best time to address the problem isn't to wait until complete baldness has formed. When miniaturization is detected early, there are more options available to preserve existing hair.
Scientific Resources
1. Cortez GL, et al. Male androgenetic alopecia. An Bras Dermatol. 2025;100(2):308–321. PMID: 39809632. https://pubmed.ncbi.nlm.nih.gov/39809632/
2. American Academy of Dermatology. Male pattern hair loss: Diagnosis and treatment. https://www.aad.org/public/diseases/hair-loss/treatment/male-pattern-hair-loss-treatment
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You can get information about dermatological evaluation and appointments for male hair loss.
On this page
- What is the most common cause of hair loss in men?
- How does it begin?
- Is it only passed down through the mother's side?
- How is the diagnosis made?
- What treatments are available?
- Are platelet-rich plasma (PRP) and microneedling effective?
- When should hair transplantation be considered?
- Dermatologist's Note
- Scientific Resources