Signs before melasma fades include fading of the color spots and reduction of their size. Melasma is a yellowish-brown pigmented spot on the face caused by a variety of factors, and its cause may be related to heredity, sun exposure and changes in sex hormone levels. In most patients, localized melasma may subside after standardized treatment. If the color of localized hyperpigmentation spots becomes lighter, such as from dark brown to light brown, it may mean that melasma is fading. In addition, if the size of the localized melasma becomes smaller, it may also symbolize that the melasma is in the process of fading. If any of the above symptoms occur, it may mean that melasma is fading, and patients are advised to seek medical consultation to clarify the relevant matters.