Dermatology

Hair Loss: When Should You Worry?

Losing hair is normal; losing too much is not.

Dr. Sophie Renard

Dermatologist

6 min read
Hair Loss: When Should You Worry?

Losing 50 to 100 hairs per day is physiological. Beyond that, or when density visibly decreases, it's time to consult.

Main Causes

  • Androgenetic alopecia: the most common, hereditary, affects men and women. Progressive miniaturization of follicles under the influence of androgens.
  • Telogen effluvium: diffuse and sudden hair loss 2-3 months after stress, illness, childbirth, or a strict diet.
  • Nutritional deficiencies: iron, zinc, vitamin D, biotin. A blood test can identify them.
  • Thyroid dysfunction: both hypothyroidism and hyperthyroidism can cause hair loss.
  • Alopecia areata: an autoimmune disease causing localized bald patches.

Treatments According to Cause

  • Topical Minoxidil: stimulates regrowth in androgenetic alopecia
  • Finasteride: blocks testosterone conversion in men
  • Supplementation: correction of deficiencies identified by biological assessment
  • PRP (platelet-rich plasma): emerging technique with encouraging results

"Miracle" food supplements generally lack solid evidence. Starting with an accurate diagnosis with a dermatologist is essential.

#Hair#Alopecia#Treatment