<unk>  causes crusty or oily scaly patches on a baby's scalp. The condition is not painful or itchy, but it can cause thick white or yellow scales that are not easy to remove.<unk>  most commonly begins sometime in the first three months but can occur in later years. Similar symptoms in older children are more likely to be dandruff than<unk> . The rash is often prominent around the ear, the eyebrows or the eyelids. It may appear in other locations as well, where it is called infantile seborrhoeic dermatitis.<unk>  is just a special - and more benign - case of this condition. The exact cause of<unk>  is not known.<unk>  is not spread from person to person (contagious). It is also not caused by poor hygiene. It is not an allergy, and it is not dangerous.<unk>  often lasts a few months. In some children, the condition can last until age 2 or 3.
Cradle cap
Tram track 
Tycoon's cap
Cramp-ring
Oak wilt
Half and half nail
Crown 
Hair whorl