Androgenic Alopecia

Patient Information Sheet: Androgenic Alopecia

What is Androgenic Alopecia?

Androgenic Alopecia, commonly known as male or female pattern baldness, is a genetic condition characterised by progressive hair thinning and eventual hair loss. It affects both men and women, although the pattern and severity of hair loss may differ between genders.

Epidemiology:

  • Men: Approximately 50-60% of men experience baldness by the age of 70, with early onset balding progressing more rapidly.
  • Women: Between 29-42% of women may experience hair loss by the age of 70, with varying rates depending on age groups.

Symptoms:

  • In men, Androgenic Alopecia typically presents as a receding hairline and thinning at the crown, leading to eventual baldness.
  • Women may experience widening of the central part with a Christmas-tree pattern, and hair loss may extend from ear to ear.

Associated Diseases:

  • Trichodynia or scalp pain may be associated with Androgenic Alopecia.
  • In men, vertex balding (crown) has been weakly associated with prostate cancer, while in women, Androgenic Alopecia may be linked to conditions like hyperaldosteronism, hyperandrogenism, polycystic ovary syndrome (PCOS), cholesterol abnormalities, late onset diabetes mellitus, and hypertension.

Pathophysiology:

  • Hormones, particularly dihydrotestosterone (DHT), play a key role in follicular regression, leading to hair thinning and loss.
  • Genetic factors contribute significantly to the development of Androgenic Alopecia, with certain genes predisposing individuals to the condition.

Diagnosis:

  • Diagnosis of Androgenic Alopecia involves a thorough medical history, physical examination, and sometimes endocrinological investigations to rule out underlying conditions.
  • Hair pull test, dermoscopy, and laboratory tests may be performed to assess hair loss patterns and identify contributing factors.

Treatment Options:

Medical:

  • Topical Minoxidil: Increases terminal hair density, particularly effective in early stages of balding.
  • Oral Finasteride: Inhibits the conversion of testosterone to DHT, reducing hair loss and promoting regrowth in men.
  • Spironolactone, Cyproterone Acetate, or Flutamide: Antiandrogen medications used in women to block the effects of androgens on hair follicles.

Other Therapies:

  • Low-level Laser Light Therapy: May stimulate hair follicle activity and promote hair growth.
  • Platelet Rich Plasma (PRP) Therapy: Involves injecting concentrated platelets into the scalp to stimulate hair follicles.

Surgical Options:

  • Follicular Unit Transplantation (FUT): Involves surgically transplanting follicular units from the occipital scalp to areas of baldness.
  • Follicular Unit Extraction (FUE): Removes individual follicular units from the occipital scalp for transplantation, leaving minimal scarring.

General Measures:

  • Camouflage Techniques: Wigs, hairpieces, and scalp colorants can help conceal hair loss.
  • Maintenance Therapy: Treatment for Androgenic Alopecia often requires ongoing maintenance to sustain results.
  • Regular Monitoring: Periodic follow-up appointments with a dermatologist are recommended to monitor progress and adjust treatment as needed.

Conclusion:

Androgenic Alopecia is a common genetic condition characterised by progressive hair loss. While it is not life-threatening, it can have a significant impact on self-esteem and quality of life. With early diagnosis and appropriate treatment, many individuals can effectively manage their symptoms and maintain healthy hair growth.

For further information or concerns, please consult with your dermatologist.

,