Background: Androgenetic alopecia carries a major cosmetic disfigurement and benign
prostatic hyperplasia is associated with many urinary tract symptoms and both
diseases are mediated by dihydrotestosterone.
Objectives: The study aimed to determine the relationship between hair diameter in
androgenetic alopecia diagnosed, by trichoscope, to benign prostatic hyperplasia
symptoms and signs.
Methods: Fifty androgenetic alopecia males and 50 normal males as control were
included. We used trichoscope for hair examination, transrectal ultrasound for prostate
volume, and urodynamic inspectoscope for urinary symptoms, serum total testosterone,
dihydrotestosterone, and total prostatic specific antigen were measured
in blood samples. All participants answered the International prostate symptom
score questionnaire and the International Index of Erectile Function score
questionnaire.
Results: A significant difference between patient and control groups was detected as
regards hair thickness (P = 0.001), prostatic volume (P = 0.013), urinary symptoms,
prostatic specific antigen level (P = 0.015). A significant difference was detected between
thin (0.03, n = 24) subgroups of
patients as regards age (P = 0.001), dihydrotestosterone level (P = 0.001), testosterone
level (P = 0.001), and urinary symptoms (P = 0.001).
Conclusion: Androgenetic alopecia patients with thin hair diagnosed by trichoscopy
are more prone to prostatic enlargement and its related symptoms. Androgenetic
alopecia severity can be diagnosed by trichoscopy in addition to Hamilton‐Norwood
scale.
K E Y W O R D S
androgenetic alopecia, thin hair, trichoscope