Stretch marks may be caused by the gradual enlargement of the abdomen in the later stages of pregnancy and the formation of broken skin elastic fibers and collagen fibers. They can be coated with topical medications and, if necessary, helped to fade away through medical aesthetics. 1. Topical application of drugs: stretch marks on the abdomen, thighs and buttocks in late pregnancy, you can wait until after delivery, external application of vitamin E, olive oil, remove stretch marks ointment applied externally. If the stretch marks are shallow and less, they may gradually fade away. 2. Treatment through medical aesthetics: If the stretch marks are heavy or have been formed for a long time, it is usually ineffective to apply them with external medication. It is recommended to go to the skin or cosmetic surgery department of the hospital, through the medical aesthetic way, such as fractional laser, strong pulse laser on the local irradiation, can help fade or eliminate. It is recommended that moderate activity, reasonable diet and weight gain control during pregnancy can reduce the occurrence of stretch marks. If stretch marks appear, they can be treated in the above ways to help improve them.