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Female Pattern Hairloss

Key Takeaways

Much like men, Women are affected by AGA as well, however it is not as common

Less than 50% of women will maintain a full hair count throughout their life

Female pattern hair loss often occurs after menopause and is influenced by hormones

This thinning follows a different pattern than the male AGA. Women`s AGA is often more diffuse and starts in the part line and effects the patient`s hair volume.

hair loss in women is very common and can be treated with a hair transplant surgery.

Female Pattern Hair Loss (Androgenetic Alopecia)

Much like male pattern hair loss, Androgenetic Alopecia (AGA) can effect woman in a similar fashion, however it is not as widespread in women (less than 50% of women will maintain their full hair count throughout their lives). It can cause hair follicle miniaturization and thinning and progress further. However, it follows a different progression pattern in contrast to male pattern hair loss.  

 

Female pattern hair loss is genetic in nature and since it often occurs after menopause it is believed to be influenced by hormones.

While shedding anywhere from 50 to 100 hair follicles daily is normal and a part of the hair`s growth cycle, a more significant shedding should be a cause for concern.

Hair follicles go through three phases in their cycle called anagen , catagen and telogen.

Anagen also known as growth phase is when the hair follicle is actively growing. This usually takes around 2 – 7 years for scalp hairs. Meaning the longer the hair follicle stays in this phase, the longer it will grow. It is estimated that around 80 – 85 % of hairs on the scalp are in this stage.

Catagen follows the anagen phase where the hair follicle falls out and new hair follicle begins to regenerate. This phase lasts for about 2 weeks.

Telogen also known as the resting phase is the final stage where the hair follicle remains dormant for up to 1 to 4 month in a healthy follicle. In a healthy scalp, around 12 – 20 % of hairs are in this phase.

After the telogen phase the anagen phase begins again completing the cycle for a healthy hair follicle.

AGA occurs when the growth phase of the cycle is shortened leaving the follicle to spend most of its time in the resting phase. Consequently the follicles become thinner over time and turn into vellus hairs (smaller thinner hair follicle).

 

 

Hair follicles go through three phases in their cycle called anagen, catagen and telogen.

Female AGA Presentation

 

This thinning follows a different pattern than the male AGA. While men will notice thinning in temples and / or vertex which then progress to complete baldness, women`s AGA is often more diffuse and it starts in the part line and affects the volume of their hair. Often the first signs of female pattern hair loss is a widening part line or thinner hairs with more visible scalp.

female hair loss progression pattern is categorized using the Ludwig scale.
REFERENCES
  • Olsen EA. Female pattern hair loss. J Am Acad Dermatol. 2001 Sep;45(3 Suppl):S70-80.
  • Vujovic A, Del Marmol V. The female pattern hair loss: review of etiopathogenesis and diagnosis. Biomed Res Int. 2014;2014:767628.
  • Ludwig E. Classification of the types of androgenetic alopecia (common baldness) occurring in the female sex. Br J Dermatol. 1977 Sep;97(3):247-54.
  • Ramos PM, Miot HA. Female Pattern Hair Loss: a clinical and pathophysiological review. An Bras Dermatol. 2015 Jul-Aug;90(4):529-43.
  • Redler S, Messenger AG, Betz RC. Genetics and other factors in the aetiology of female pattern hair loss. Exp Dermatol. 2017 Jun;26(6):510-517.
  • Birch MP, Messenger JF, Messenger AG. Hair density, hair diameter and the prevalence of female pattern hair loss. Br J Dermatol. 2001 Feb;144(2):297-304.

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