Usually, spots will grow in 3-5 months of pregnancy, but pregnant women’s physique is different, and the time of spotting is also different. Spotting during pregnancy is caused by the stimulation of estrogen and progesterone during pregnancy, and the increase of melanin secretion, mostly located on the face, areola or abdomen. Usually, spots grow during 3-5 months of pregnancy, but the time will be slightly different depending on the physical condition of the pregnant women, some pregnant women will appear at 2 months of pregnancy, and some pregnant women don’t even grow spots. Usually the spots will disappear by themselves after giving birth. Pregnant women can prevent spotting by paying attention to a reasonable diet, eating more vegetables and fruits, supplementing vitamins, keeping a happy mood, not having too much pressure, avoiding staying up late, and exercising appropriately.