Stretch marks appear on the stomach of pregnant women after giving birth due to the breakage of the dermis layer of the abdomen caused by the short-term dramatic increase in abdominal circumference and weight in the late stage of pregnancy, and they can be improved through the application of preparations, fractional laser, surgery and so on. 1. Applying preparations: If the stretch marks are in the early stage and the color is still purplish-red, you can treat them by applying products containing retinoic acid on the stretch marks, which is prohibited for pregnant and lactating women because it affects the fetus and the newborn. 2. Fractional laser: Pregnant women with stretch marks on their stomachs can also be removed by means of laser, the principle of laser is that after the photothermal effect on the skin, it quickly penetrates into the skin layer, thus prompting the regeneration of subcutaneous collagen to improve the appearance of stretch marks. 3. Surgery: If the stretch marks on a pregnant woman’s stomach are particularly serious, they can also be repaired through plastic surgery abdominoplasty. It is recommended that patients who are willing to be treated go to a regular medical institution, follow the specialist’s instructions for medication and treatment, and avoid blind use of medication, which may lead to adverse consequences.