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Acne Scar : Causes

Home / Acne Scar : Causes

Scar is an unfortunate outcome of acne. It is important to treat acne at an early stage and consult a dermatologist in order to reduced or minimize scar formation.

Cause of scarring:

Scar occurs as a result of irreversible damage to skin. There can be darkening of skin colour and alteration in texture of skin as a result of acne.

Scarring is mostly seen after resolution of deep cyst and nodules. It causes some changes in the deeper layer of skin (dermis) leading to uneven collagen formation and skin tethering or pitting. As a result of inflammation, there is injury to pigment forming cells. There is increase in the melanin produced. This causes darkening of skin colour. Redness can occur as a result of injury to blood vessels.

Unfortunately, Indian skin types are more prone to scarring and pigmentary changes.  Dark skin type is also more susceptible to formation of large scars and keloids.

The type of scarring also varies with site. Forehead and upper cheeks show pitted scarring and textural change. While lower face, which has thicker skin, shows deep scars which tend to be large. If lesions are present in chest, upper back and shoulders, the chances of developing keloids is higher.

Types of acne scar:

Depressed scar:

  • Icepick
  • Boxcar
  • Rolled

Elevated scar:

  • Hypertrophic scar: elevation from skin is within the size of the actual scar
  • Keloid: elevation is larger than the size of scar. They are more round, red and fleshy.

Alteration in colour

  • Red
  • Dark brown:
  • Light brown: