Oedematous miscarriage usually refers to the miscarriage caused by edema of the chorionic villous tissue, which may be related to hyperemesis gravidarum, and requires prompt medical treatment once detected. The onset of hyperemesis gravidarum may lead to edema of the chorionic villous tissue, thus increasing the likelihood of hydrops, which is generally related to genetic and endocrine factors, and the probability of the disease is greatly increased if there is a family history of similar diseases in the patient. In the case of hyperemesis gravidarum, the patient should be followed up with a blood HCG test. When a spontaneous abortion occurs, the uterus needs to expel the pregnancy, so it will cause bleeding, and after that, it needs a certain period of time to prepare for pregnancy again, and you need to regulate your own body before preparing for pregnancy.