1. At the bottome of the URL it describs some reasons.
2. Normally age > 35 is the major factor why amniocentesis is needed.
3. amniocentesis is invasive, 0.5% chances with miscarriage, but it is balanced by the risk of Down's syndrome.
4. Extra care required for twins if amniocentesis is taken.
All the best
2. Normally age > 35 is the major factor why amniocentesis is needed.
3. amniocentesis is invasive, 0.5% chances with miscarriage, but it is balanced by the risk of Down's syndrome.
4. Extra care required for twins if amniocentesis is taken.
All the best