The main reasons for the performance of crying nose after pregnancy include: 1, personal character problems, some women are weak, suspicious and sensitive, too sensitive to the words and actions of family members, especially the husband, the slightest dissatisfaction will appear the performance of crying nose. 2, too much pressure, some women after pregnancy, the pressure from the workplace and family is too much, pregnant women are not able to release this pressure through other means well. 3, plant nerve dysfunction, after pregnancy, the body’s hormone levels will change significantly, which will cause plant nerve dysfunction, also prone to mood swings, a little less than what you want to cry nose. 4, physical discomfort, whether it is early pregnancy reaction, or late pregnancy after the uterus enlarges, pressure and discomfort caused by. All may cause emotional changes in pregnant women, often crying nose.