Hair loss can be caused by a variety of factors. It’s possible that the cause of your hair loss will decide if your hair:

  • Falls out gradually or suddenly
  • Thins
  • Requires treatment to regrow
  • Is irreversible and immediate attention is required.

Causes of hair loss

  • Hereditary hair loss
  • Age
  • Alopecia areata
  • Cancer treatment
  • Childbirth, illness, or other stressors
  • Hair care
  • Hairstyle pulls on your scalp
  • Hormonal imbalance
  • Scalp infection
  • Medication
  • Scalp psoriasis
  • Pulling your hair
  • Scarring alopecia
  • Sexually transmitted infection
  • Thyroid disease
  • Too little biotin, iron, Vit D or B12, protein, or zinc
  • Friction
  • Slow Poisoning

Source: American Academy of Dermatology Association