Everyone in his life at least once found the problem called dandruff and deal with it. Do you know what is dandruff? Dandruff is a common chronic scalp condition marked by flaking of the skin on your scalp. Although dandruff isn’t contagious and is rarely serious, it can be embarrassing and sometimes difficult to treat. Can we control it? The good news is that dandruff usually can be controlled. Mild cases of dandruff may need nothing more than daily shampooing with a gentle cleanser.