Yellowish secretions during pregnancy can be caused by a variety of reasons: 1, for example, the pregnant woman may be in pregnancy during the physical decline, the reproductive tract is infected so that the bacteria into the vagina to cause vaginitis, pelvic inflammatory disease and other diseases, so it will cause the above symptoms. It is recommended that patients should go to the hospital in time for examination, and pay attention to personal hygiene, change underwear diligently, do not affect the growth and development of the fetus. 2, other reasons, there may be during pregnancy, the corpus luteum of the ovary secretes estrogen, progesterone, which leads to the symptoms of pregnant women with yellow secretions during pregnancy, but if it is the case that this reason and triggered by the patient does not need to worry about it, it is a normal situation. In addition, pregnant women during pregnancy must pay attention to diet, eat more fresh fruits and vegetables, and regularly go to the hospital for maternity checkups so that the baby grows healthily.