Stretch marks usually appear when you are about 5-6 months pregnant. The hormones in a woman’s body change when she is pregnant, and estrogen and progesterone increase rapidly, so it is normal for a stretch mark to appear on the abdomen in the middle and late stages of pregnancy. Of course, the actual situation of each pregnant woman is different, so there will be some differences in the time of the appearance of the stretch marks. After pregnancy, women should pay attention to maintain balanced nutrition, get more rest, go to the hospital regularly for maternity checkups, and maintain a good state of mind. Diet can eat more fruits, eat more calcium, protein, vitamin content of food, in addition, you can do some light exercise, such as walking, but do not do too strenuous exercise, proper exercise in late pregnancy is conducive to delivery.