Androgenetic Alopecia, Male Pattern Baldness: Signs

Alopecia Develops Gradually

Hair loss usually does not start until after puberty, and the rate of progression is extremely variable. Some men go completely bald in less than 5 years but most take 15-25 years. One study found an average rate of hair loss of about 5% per year. Progression fluctuates considerably, with periods of accelerated loss lasting 3-6 months followed by quiescent periods lasting 6-18 months.

alopecia areata in men Androgenic alopecia develops as a gradual reduction in hair follicle size and shorter cycles in the active growth phase. In a normal cycle, about 100 hairs are lost on average from the head every day. As androgenic alopecia develops, the total number of hair follicles is reduced and irreversibly destroyed.

Androgenetic alopecia produces patterned hair loss,beginning with bitemporal recession of the frontal hair line, followed by diffuse thinning over the vertex.

Male Pattern Baldness: Classification

Over time there is complete hair loss centrally on the vertex, producing a bald patch. The patch enlarges and joins the receding frontal hair line, leaving behind an island of hair on the frontal scalp. Eventually this island also disappears and only the marginal parietal and occipital hair remains. Ultimately the remaining hair thins and may also be lost.

hamilton scale

Fig 1 shows the classification of male pattern baldness by Norwood. Source: (Norwood OT, South Med J 1975 Nov; 68(11):1359-65).

Disclaimer

The information contained herin is a summary and does not contain all possible information about this product / products. For complete information about this product / products or your specific health needs, ask your health care professional. Always seek the advice of your health care professional if you have any questions about this produ t/ products or your medical condition.

This information is not intended as individual medical advice and does not substitute for the knowledge and judgment of your health care professional. This information does not contain any assurances that this product / products is safe, effective, or appropriate for you.

If you find this website helpful, please

QR Code for your mobile phone. If your mobile is not yet equipped with a reader there are free downloads at Kaywa , Quickmark ( supports most mobile phones) or else Acriveprint ( supports mainly Nokias )

Finasteride-1mg QR Code Alopecia Hair Loss

Stop Hair Loss

Hair Loss Solutions for Men

Causes of Androgenetic Alopecia

Female Pattern Hair Loss

Androgenetic Alopecia, Male Pattern Baldness: Signs

Alopecia Develops Gradually

Male Pattern Baldness: Classification