Symptoms

A molar pregnancy may seem like a normal pregnancy at first, but most molar pregnancies cause specific signs and symptoms, including:

• Dark brown to bright red vaginal bleeding during the first trimester
• Severe nausea and vomiting
• Sometimes vaginal passage of grapelike cysts
• Pelvic pressure or pain

If you experience any signs or symptoms of a molar pregnancy, consult your doctor or pregnancy care provider. He or she may detect other signs of a molar pregnancy, such as:

• Rapid uterine growth — the uterus is too large for the stage of pregnancy
• High blood pressure
• Preeclampsia — a condition that causes high blood pressure and protein in the urine after 20 weeks of pregnancy
• Ovarian cysts
• Anemia
• Overactive thyroid (hyperthyroidism)