Prevention of hydatidiform mole is not possible at this time. Many risk factors include conditions or issues outside a woman’s control. For example, blood types A and AB seem to indicate a slightly higher risk than do types B and O. A prior molar pregnancy, miscarriage and family history may also contribute to a slight increase in risk.
Risk factors that women can control include lifestyle choices. A pregnancy that occurs soon after a treatment for hydatidiform mole increases risk for a recurrence. A woman should avoid becoming pregnant for up to a year following surgery.
Other options include observing safe practices for sexual health to avoid contracting viral infections that can contribute to conditions that lead to molar pregnancy. Following a sensible diet is always a good practice although its direct relationship to GTD is not yet clear.
Given the rarity of the condition, trying to find steps for preventing hydatidiform mole may not be as productive as simply living a healthy lifestyle and having regular checkups with an OB/Gyn.