Hair Loss Causes In Men

Causes of Hair Loss in Men

Male hair loss can happen for a number of reasons, most of which are entirely out of your control. And while knowing the cause of your hair loss isn’t going to fix it by itself, recognizing the type of male hair loss you have is the first step in determining your ideal treatment plan.
Most causes of hair loss in men can be attributed to one of the following reasons:

  • Male Pattern Baldness (Androgenetic Alopecia)
  • Scarring from accidents, surgery, chemical and thermal burns.
  • Hair loss due to hair pulling such as braiding or weaving.
  • Heredity (family history of hair loss)
  • Medical conditions and medications
  • Changes in your hormones

Male Pattern Baldness (Androgenetic Alopecia)

As its name implies, male pattern baldness usually exhibits a predictable pattern — with hair loss beginning at the hairline above the temples and gradually receding. Male pattern baldness, is also the most common cause of hair loss in men, accounting for more than 95% of all hair loss cases.

Male pattern baldness causes your hair follicles to shrink gradually over time until they stop regrowing. Without proper attention, it can eventually progress to the point where only hair on the sides and rear of the head are left. With timely treatment this outcome can be prevented.

Traction Hair Loss (Traction Alopecia)

Hairstyles that pull your hair tight, such as braids and cornrows, can cause stress to the scalp. Traction alopecia is a type of hair loss that happens over time. It can also be caused by a number of other factors including wearing wigs, hairbands, braids, tight headgear, or pulling of the hair with the hands (this is an emotional condition called trichotillomania).

Patchy Hair Loss (Alopecia Areata)

Much less common than male pattern hair loss is patchy hair loss and spot baldness, also known as Alopecia Areata. Alopecia Areata is actually an autoimmune disease and occurs when your body’s immune system attacks your hair follicles, leaving a smooth, round patch of hairless skin. Patchy hair loss can happen in otherwise healthy people.

Other Hair Loss Factors

Hair loss in men can also be caused by external factors. Some examples include:

  • A traumatic event such as a death in the family
  • Medication to treat cancer, heart problems or high blood pressure

Classifications for Hair Loss in Men

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Hair Loss Classification: the Norwood Scale

Class 1 represents a head of hair with no visible hair loss.

Class 2 is characterized by the beginning of a receding hairline and some recession in the temple region.

Class 3 patients exhibit a more significant decline in hair above the temples as well as receding from the forehead. In Class 3 Vertex, hair loss is starting to become significant on the crown.

Class 4 hair loss may become more noticeable on the crown or patients may have significant hair loss above the temples and/or forhead.

Class 5 hair loss affects the front and back of the scalp with only a small remnant of the front hairline remaining and a rather large area of hair loss on the top.

Class 6 advanced hair loss where the hair bridging the two sides of the head is fading away or completely gone. There may still be sufficient donor hair for transplantation; however, results may be limited.

Hair Loss Norwood Scale


Hair Loss Solutions

You can meet with a Bosley professional to learn about proven options that are available to restore your hair. The free consultation is private, and you can learn about every state-of-the-art hair restoration treatment offered at Bosley.


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“I chose Bosley because when you’re losing your hair it’s on your radar, and if I’m going to get this done I want to get it done right. I wanted to go to the best. I figured Bosley would be the best, and look at these results!”*

– Andrew R., Class 4 (subjective) hair loss classification

*Not all patients can achieve the results described/depicted here. Ask your Bosley physician during your free consultation about your individual case”

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