What is the difference between dandruff and psoriasis?
Dandruff is a cosmetic problem which usually affects men and women mostly between the ages of 18 and 50. At 20 nearly 50% of the population are affected to some degree. The cause of dandruff is disputed, however, the most accepted explanation is that the yeast Pityrosporon ovale has a major role in triggering the condition by increasing the speed of epidermal turn over. Small white or grey scales accumulate on the surface of the scalp which are often shed on to the collar or shoulders.. Sometimes, if a person has an oily scalp, the seborrhea (scalp oil) binds to the dandruff in a greasy paste that is no longer shed, but accumulates in small adherent patches. These patches of scale often have a yellowish color. If scalp inflammation develops with redness, particularly around the hair line, then the condition may have turned into seborrheic dermatitis. This condition is often associated with increased itching (pruritus). Psoriasis is a more severe scalp condition which has a very inflame