Long obese lines do not necessarily grow stretch marks, obese lines and stretch marks are two different concepts. Obesity lines refers to a stripe caused by excessive obesity, clinically known as expansion lines or atrophy lines, is due to excessive fat accumulation in the short term, excessive muscle stretching, dermal elastic fibers and collagen fibers are destroyed and caused. Stretch marks are abdominal skin expansion lines that occur during pregnancy and are related to factors such as excessive stretching of the skin, and there is not much connection between the two. Daily life should be more exercise, moderate exercise, avoid high oil and high fat diet, develop healthy habits, to avoid the occurrence of obesity lines, stretch marks during pregnancy should not be too alarmed, keep a happy mood.