The double bubble sign is a finding on ultrasound that is specific for duodenal obstruction in newborns or infants. The likelihood of the double bubble sign resolving on its own depends on whether the pregnancy is early or late. 1. Early pregnancy: If this condition is found in early pregnancy, usually there is no need to worry too much, this condition may occur in the first pregnancy, most of the fetal double bubble sign will disappear gradually with the development of the fetus. 2. Late pregnancy: If the symptom is found in the late second trimester, there is a high probability of having a congenital malformation of the duodenum. At this point, the newborn or infant may require surgical intervention. It is recommended that women do prenatal checkups and take pregnancy tests on time after pregnancy to find any abnormalities and treat them promptly. Regular diet should ensure adequate nutrition and appropriate folic acid supplementation to prevent fetal malformation. During pregnancy, it is necessary to maintain a good state of mind, avoid excessive tension, etc..