Increased nausea at 10 weeks of pregnancy may be a normal early pregnancy reaction or it may be caused by diseases such as gastrointestinal disease, liver and gallbladder disease and hyperemesis gravidarum. If there is a sudden increase of nausea during pregnancy, it is recommended to seek medical attention in time to avoid delaying the condition. I. Normal early pregnancy reaction: In about 6 weeks of pregnancy, due to the change of estrogen and HCG level in the body, pregnant women are prone to early pregnancy reaction, which is manifested as nausea, vomiting and loss of appetite, and the early pregnancy reaction reaches the peak in 9-10 weeks of pregnancy, and then gradually eases, and can generally disappear in 12 weeks of pregnancy. Therefore, it is normal for nausea to increase in the 10th week of pregnancy, without other abnormal symptoms and discomfort, and with normal indicators in all examinations. Second, disease: 1, gastrointestinal diseases: pregnant women in 10 weeks of pregnancy due to early pregnancy reaction lead to irregular eating, lower immunity, easy to appear gastrointestinal diseases, thus aggravating nausea symptoms, common diseases, including gastritis, gastric ulcer, gastroesophageal reflux, intestinal obstruction, etc.; 2, hepatobiliary diseases: hepatitis, chronic cholecystitis patients, can appear loss of appetite, epigastric discomfort and nausea symptoms, and the performance of early pregnancy reaction Therefore, if nausea worsens in 10 weeks of pregnancy, the above diseases cannot be ruled out; 3, gravida: ultrasound examination has been conducted in 10 weeks of pregnancy, so gravida is basically ruled out, however, a small number of pregnant women may only use pregnancy test paper to check, but have not yet conducted ultrasound examination and blood test, at this time there may be gravida, because the HCG level in pregnant women continues to As the HCG level in the pregnant woman’s body continues to increase, the nausea may be aggravated. If the nausea is so severe that you cannot eat, or if it is accompanied by abdominal pain, diarrhea or even vaginal bleeding, it is recommended that you seek medical attention to rule out diseases through ultrasound, stool and blood tests. If the disease factor is ruled out, you can take appropriate rehydration treatment, and the early pregnancy reaction will gradually disappear after 1-2 weeks.