Passed something like grapes! is it likely vagina cancer or something deadly?

Molar pregnancy: Must see your doctor immediatly, it could be hydatidiform mole, non -viable fertilized egg gets implanted into uterus, yes will shed as grape like tissues with bleeding. Majority of them benign but 20% chance of malignent trasformation is possible, must seek professional help.

Molar pregnancy: You appear to have what i called a molar pregnancy. You need to go to the emergency room or see your gynecologist immediately! asuction D&C should be done immediately. Pathologic review of the uterine contents that are removed is the only way to get a real diagnosis. Most molar pregnancies are discovered before 10 weeks gestation.