Pregnancy fourteen weeks pregnancy vomiting aggravation, may be a normal physiological phenomenon, but also may be related to disease factors. 1. physiological phenomenon: pregnant women in pregnancy, the body’s hormone levels will change, gradually increasing estrogen and progesterone will produce stimulation of the gastrointestinal tract, when the gastrointestinal smooth muscle spasms, there will be pregnancy. Because each pregnant woman’s physical condition is not the same, so the manifestation of pregnancy vomiting is also different, and even some pregnant women will be accompanied by nausea, vomiting and other uncomfortable symptoms in the whole pregnancy. Therefore, in the fourteenth week of pregnancy, the sudden aggravation of vomiting may be a normal physiological phenomenon. 2. Disease factors: fourteen weeks pregnant with pregnancy vomiting, may also be the disease caused by pregnancy vomiting, mostly with thyroid disease, gastroenteritis or fetal malformation and other factors. In addition, when the pregnant woman is nervous, it is also easy to lead to the aggravation of pregnancy vomiting. Therefore, there are many reasons for the aggravation of fourteen weeks of pregnancy, you need to go to the hospital to do the relevant examination to clarify the cause, timely rehydration, to avoid acidosis, electrolyte disorders and other adverse consequences.