Hair damage and breakage: heat, chemicals and tight hairstyles

Medical review pendingWritten by the HairLoss99 editorial team

In short: a lot of "hair fall" is actually hair breaking, snapping along its length because of heat, chemical treatments (rebonding, smoothening, keratin, bleaching) or rough handling. Breakage makes hair look thinner, but the roots are fine, so it recovers as healthier hair grows. The exception is traction alopecia, caused by tight hairstyles pulling for years, which can become permanent if ignored.

Breakage or real hair fall?

Breakage Hair fall from the root
What you find Short pieces of different lengths Full-length hairs
End of the hair Snapped, no bulb Small white bulb
Where Lengths, ends, hairline (with tight styles) All over, or in a pattern
Hair looks Frizzy, rough, uneven, split ends Thinner at the roots
If it's hair fall from the root, see the cause finder.

What causes breakage

Heat

Straighteners, curling tongs and very hot blow-drying weaken the hair's outer layer. Damage builds up with high temperatures and styling wet hair.

Chemical treatments

Mechanical

Rough towel-drying, brushing wet hair, fine-tooth combs, cotton pillowcases, and tight rubber bands.

Traction alopecia (tight hairstyles)

How to recover

  1. Stop the cause: pause heat and chemical treatments; loosen hairstyles.
  2. Trim damaged ends. Breakage moves up the shaft if split ends are left.
  3. Condition every wash; use a leave-in or a little oil on the lengths.
  4. Use heat protectant and lower temperatures if you must style.
  5. Detangle gently: wide-tooth comb, from the ends upwards, on damp (not soaking) hair.
  6. Silk or satin pillowcase, soft scrunchies.
  7. Hard water? A weekly chelating wash helps. → Hard water

When to see a dermatologist

See a doctor soon if you have: round bald patches that appear suddenly · hair coming out in clumps · redness, pain, pus, scaling or scarring on the scalp · hair loss with fever, weight loss, irregular periods, acne or new facial hair · eyebrow or eyelash loss · hair loss in a child.


Medical review pending: not yet reviewed by a dermatologist. Medical disclaimer

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