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Ovarian Hyperstimulation Syndrome

Symptoms and Signs of Ovarian Hyperstimulation Syndrome

The symptoms of ovarian hyperstimulation syndrome (OHSS) are usually mild but can be severe in some cases. Doctors classify OHSS as mild, moderate or severe. 

The common symptoms of OHSS and their intensity vary with each type of the disorder.

  • Mild OHSS
    • Abdominal bloating
    • Mild abdominal pain
    • Moderate OHSS
    • Nausea, vomiting and diarrhea
    • Moderate abdominal pain and distention
    • Build up of fluid between the lining of the abdomen and the abdominal organs
    • Severe OHSS
    • Rapid weight gain (more than 10 pounds in five days or less)
    • Severe lower abdominal pain
    • Reduced urination
    • Acute kidney failure
    • Shortness of breath
    • Low blood pressure or reduced blood volume

In most mild cases, the symptoms of OHSS disappear after the beginning of menstruation. Sometimes symptoms take several days to improve. However, becoming pregnant while affected by OHSS can make symptoms worse. 

Locations for Ovarian Hyperstimulation Syndrome