A line on the stomach during pregnancy is generally a physiological manifestation caused by melanin deposition in the gestational line, and there is generally no need to worry too much about it. A line on the stomach during pregnancy, generally for the pregnancy line, mostly formed in pregnancy between 2-4 months, after the middle of pregnancy is generally more obvious, is a normal physiological phenomenon. The imbalance between estrogen and androgen secretion during pregnancy can easily lead to melanin deposits in the white line of the abdomen, and then stretch marks appear. If there are stretch marks, pregnant women do not need to worry too much, most people will gradually fade after delivery, attention should not be unauthorized use of medication. It is important to note that pregnant women should undergo regular checkups to detect any problems in time. At the same time to maintain a good state of mind, do not over-anxiety; develop good habits, pay attention to rest; attention to balanced nutrition, prohibit smoking and alcohol.