Dandruff is a symptom of seborrheic dermatitis, a common skin condition that causes white or yellow flakes and scaly patches on the scalp, face, upper chest or back. Sometimes the patches can get ...

Medically reviewed by William Truswell, MD Key Takeaways Become familiar with facial bumps that are harmless, including milia, sebaceous hyperplasia, seborrheic keratoses, and xanthelasma.Check for a ...