An itchy head can be quite painful, not just physically but emotionally as well. With severe scratching, your scalp may form white scabs that are visible and flaky. Constant itching and scratching of the scalp lead to white flakes embarrassingly falling all over your clothes as well.
On the other hand, itching can also damage your scalp, leading to further irritation and crusty flakes form. There are various reasons for this to occur such as an oily scalp, Seborrheic Dermatitis (Dandruff), head lice, scalp acne, Scalp Folliculitis, and more.