What are the symptoms of a blighted ovum?

Oct 17, 2022 Source: Cainiu Health

Dr. Lv Aiming

Introduction

A blighted ovum refers to a condition in which the embryo has stopped developing. The main symptoms include disappearance of early pregnancy reactions, cessation of progesterone level rise, and irregular vaginal bleeding. Ultrasound examination of the pregnant woman reveals a gestational sac within the uterus, but no fetal heartbeat or embryonic bud is visible inside the sac, or the gestational sac has ceased to develop. Early pregnancy symptoms such as nausea, vomiting, and fatigue may suddenly disappear or diminish.

A blighted ovum refers to a condition in which embryonic development has ceased. The main symptoms include the disappearance of early pregnancy reactions, cessation of progesterone rise, and irregular vaginal bleeding.

A blighted ovum is primarily caused by embryonic abnormalities, such as chromosomal abnormalities, but may also result from endocrine disorders, autoimmune diseases, or other factors. On ultrasound examination, a gestational sac can be seen within the uterus, but there is no fetal heartbeat or embryo present, or the gestational sac has stopped growing. Early pregnancy symptoms such as nausea, vomiting, and fatigue may suddenly disappear or diminish. Progesterone and estrogen levels decrease, and some women may experience irregular vaginal bleeding.

When a blighted ovum is diagnosed, pregnancy should be terminated as early as possible. Dilation and curettage (D&C) is generally recommended, and chromosomal analysis of the expelled pregnancy tissue should be performed to identify the cause of embryonic demise. Both partners should undergo medical evaluations, including assessment of sperm quality and the woman's hormone levels. After surgery, a high-protein diet and adequate nutrition are recommended to support recovery. Most women can attempt pregnancy again after 3–6 months.

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Is it possible for a blighted ovum to develop an embryo?

A blighted ovum refers to a condition in which, after dynamic observation following conception, a fluid-filled cystic area is found in the uterine cavity but without the presence of a yolk sac, embryo, or fetal heartbeat. Whether a blighted ovum can develop an embryo depends on the duration of pregnancy. Generally, if no fetal heartbeat or embryo appears by 50 days of gestation, it is unlikely that an embryo will develop.

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What causes a blighted ovum in pregnancy?

A blighted ovum during pregnancy may be caused by environmental stimuli, abnormal sperm, chromosomal abnormalities, viral hepatitis, lupus erythematosus, or other factors. It is recommended to seek medical attention promptly and receive appropriate treatment after identifying the underlying cause. During pregnancy, follow your doctor's instructions for regular prenatal checkups and closely monitor fetal development. At the same time, maintain a positive mood, communicate frequently with family and friends, and avoid negative emotions that could have adverse effects.