Deep neck lines on pregnant women’s neck may be caused by hormone disorders, weight gain and bad life habits. It is recommended that patients eliminate them by maintaining a correct lifestyle and strengthening local care under the guidance of a doctor in several ways. 1. Maintain a correct lifestyle: minimize the number of times of lowering the head every day, and moderately control the weight of pregnant women to prevent too much weight change and aggravate the phenomenon of neck lines. 2. Enhance local care: As the skin of the neck is relatively thin and tender, so it is easy to appear neck lines, patients can massage the neck through special neck cream to provide moisture to the neck skin. In addition, if the pregnant woman has finished giving birth and her neck lines are still obvious, she can improve the situation of neck lines through laser and drug injection. If pregnant women have deep neck lines, it is recommended to go to regular hospitals for timely examination and standardized treatment under the guidance of professional doctors.