Polyhydramnios is where there is too much amniotic fluid around the baby during pregnancy. Amniotic fluid is the fluid that surrounds your baby in the womb.
Too much amniotic fluid is normally spotted during a check-up in the later stages of pregnancy.
It isn't usually a sign of anything serious, but you'll probably have some extra check-ups and will be advised to give birth in hospital.
This page covers:
Will I have a healthy pregnancy and baby?
Symptoms of polyhydramnios
Tests, checks and treatments you may have
Things you can do
Your labour and giving birth
Causes of polyhydramnios
Most women with polyhydramnios won't have any significant problems during their pregnancy and will have a healthy baby.
But there is a slightly increased risk of:
Most babies whose mothers have polyhydramnios will be healthy. Speak to your doctor or midwife if you're concerned or have any questions.