24 weeks fetal intestinal tube echo enhancement level 2 may be caused by fetal fecal mass, but it can not be ruled out caused by fetal intestinal tube malformation, etc.. 1. Fetal fecal mass: Generally, feces will be produced in the intestines of the fetus above 20 weeks of pregnancy, which may be manifested as enhanced echogenicity of the fetal intestinal tube during ultrasound examination. If there is no abnormality in the non-invasive DNA result during pregnancy, there is no need to worry too much. Most of the normal fetal bowel echogenicity will disappear within a few weeks, and usually will not cause any adverse consequences. 2. Fetal mesenteric malformation: 24 weeks fetal mesenteric echogenic enhancement level 2 does not exclude the existence of fetal mesenteric malformation. If the results of non-invasive DNA or Down’s syndrome test during pregnancy suggests that there are abnormalities, the mother has cytomegalovirus or toxoplasmosis infection during pregnancy, or fetal growth restriction needs to be further amniocentesis to rule out fetal malformations. If the examination finds that the fetal intestinal echogenicity is enhanced, it is recommended to go to the obstetrics department of the hospital in a timely manner. Under the guidance of the doctor, further diagnosis and treatment should be carried out in conjunction with the results of the obstetric examination during pregnancy and the physical condition of the pregnant woman.