Answer:
Explanation:
Amniocentesis is a technique which is used to determine the genetic abnormalities in the developing fetus inside the mother's womb in the presence of certain chemicals. In this technique a small sample of the amniotic fluid is taken which surrounds the baby in the uterus under the guidance of ultrasound.
CVS is a technique which is used to diagnose the genetic and congenital defects in the fetus by taking a small sample of placenta under the guidance of ultrasound.
The three reasons a woman may not choose either of these procedures:
1. These procedures are painful.
2. These can harm the placental wall may either cause early delivery or miscarriage.
3. The exposure of fetus to ultrasound is also harmful for developing fetus in mother's womb.
