Types of Dandruff

I. Dry variety (Pityriasis sicca)

  • Usually affects people with dry skin and scalp (especially those people who do not use oil at all or rarely).
  • More common in winter than in summer.
  • Has a favorable response to treatment.

It is characterized by:

  • dry scales which freely fall on the shoulders.
  • fine, thin scales which are white or grayish in color.
  • mild to moderate itching.
  • dry and lusterless hair.

II. Greasy variety (Pityriasis steatoides)

  • Usually affects people with oily skin and scalp.
  • Usually responds poorly to treatment.

It is characterized by:

  • dandruff patches which are localized or may be present through out the scalp. In severe cases the patches can extend to eyebrows, eyelids, beard, armpit and groins may be affected.
  • waxy or greasy scales.
  • thick scales or crusts which are yellowish in color.
  • moderate itching.
  • matted hair.