After two years of pregnancy, what tests do you need to do before pregnancy?

Hydatidiform mole two years after pregnancy before the need to do a branch examination and B ultrasound examination, preferably in the first three months of pregnancy to take adequate folic acid and appropriate calcium tablets, can prevent fetal malformations. Because patients before the experience of hydatidiform mole, it is best to go to a large hospital for a comprehensive reproductive system examination.