The normal range of amniotic fluid index during pregnancy is 8-20cm. 37 weeks of pregnancy with oligohydramnios should be treated with diet, medication or termination of pregnancy depending on the amniotic fluid. According to the degree of amniotic fluid, it can be categorized into mild oligohydramnios, moderate oligohydramnios and severe oligohydramnios. 1. Mild oligohydramnios: you can consider dietary modification, usually pay attention to eat more fresh fruits and vegetables, appropriate hydration to increase amniotic fluid. 2. Medium low: you can increase the blood circulation of the mother in the short term through a large amount of rehydration intravenous infusion, so as to indirectly increase the amount of amniotic fluid. If the treatment is ineffective, it is recommended to terminate the pregnancy in time. 3. Severe oligohydramnios: it is more likely to lead to intrauterine hypoxia or death of the fetus, and the pregnancy should be terminated as soon as possible under the guidance of the doctor. In late pregnancy, you must closely observe the baby’s fetal movement, and those with low amniotic fluid should be treated under the guidance of a doctor.