Generally, elders are mostly affected by the itchy scalp more than the young people. Only few youngsters will be affected by itchy scalp . Dry skin is most suitable for itchy scalp. Elder people have dry skin than young that is why this problem occurs on them. Dandruff is one of the reasons for itchy scalp. The dead cells are present in every human and if the dead cells increase, it causes the problem of itchy-scalp. If sebum secretion is more in hair follicles, then it is suitable for dandruff to survive in hair. Dermatitis also causes itchy-scalp. It will be similar to dandruff. But it will be found in face, neck and in other parts of the body. More secretion of sweat glands may cause dermatitis. Apart from the genetic and environmental factors also responsible for itchy scalp. Vitamin B deficiency leads to dermatitis. It should be treated properly otherwise it will affect the immune system. Sunburn also causes itchy scalp. Poor hygiene is the main cause for itchy scalp.