Dandruff is a common scalp condition that causes white or grey flakes of skin to appear on the scalp and in the hair. DR P. MARAZZI/SCIENCE PHOTO LIBRARY These flakes are often more noticeable in darker hair and if they fall from your scalp onto your shoulders. While not contagious or serious, it can be embarrassing and difficult to treat. Mayo Clinic
Dandruff is a mild form of seborrheic dermatitis, a skin condition that affects oily areas of the body. KidsHealth The exact cause is unknown, but it is likely a combination of factors, including:
- Oily skin: The scalp produces natural oils that can trap dead skin cells, leading to flaking.
- A fungus: Malassezia globosa, a common fungus found on the scalp, may play a role in dandruff.
- Dry skin: Dry skin can also cause flaking.
- Shampooing habits: Washing your hair too often or too infrequently can contribute to dandruff.
