| ภาษาไทย | Article by Dr.Piyawat POOMSUWAN |
Symptoms:
- Thinning at the temporal area without complete baldness, revealing more forehead when hair is brushed back.
- Hair gradually becomes thinner and finer.
- Hair shafts appear more spaced apart but do not fall out completely.
Age:
- Often occurs from the age of 35 and older.
Family History:
- It is not necessary to have a family history, but it trends to have more severity in family history cases.
Lab:
- Blood tests are usually normal, and there are no underlying health issues.
Cause:
- This type of hair thinning is believed to be related to changes in female hormones, particularly estrogen. This differs from hereditary hair loss, which is linked to male hormones (androgens).
Scientific Findings:
- Estrogen plays a role in hair growth.
- Hair density decreases with age, peaking between the ages of 20–30 and declining thereafter.
- Hair shafts become finer as estrogen levels drop.
- The number of hair shafts significantly decreases after the age of 40.