Spots that grow during pregnancy can be divided into two categories, i.e. melasma and sun spots. Some people have a vigorous metabolism and the color spots will be reduced or disappear after giving birth to a child, but some people have a less efficient metabolism and the spots may not disappear after giving birth. 1. Melasma: This is due to the change of hormone level in the body during pregnancy, melanin deposits in the local skin, and melasma can gradually fade away or disappear on its own after giving birth or breastfeeding if the metabolism is vigorous. 2. Sun spots: This is due to the fact that pregnant women do not pay attention to personal sun protection and their skin is exposed to ultraviolet rays, which causes melanocytes to produce a large amount of melanin, which is deposited on the surface of the skin, and the sun spots usually do not disappear on their own. After giving birth to a child, some women’s pigmentation on the face will not fade away, so they can use some whitening medicines or medical beauty treatment to get rid of it under the guidance of a professional doctor. During pregnancy, women should pay attention to resting more, relaxing and avoiding nervousness and anxiety, and should go to the hospital in time if they have any discomforts, so that the doctor can make a clear diagnosis and cooperate with the doctor to deal with the symptoms.