Amniocentesis is a medical procedure used during pregnancy to collect a small sample of amniotic fluid surrounding the fetus. This fluid contains cells and substances that can provide important information about the baby's health. The procedure is typically performed between the 15th and 20th weeks of pregnancy and involves inserting a thin needle through the abdomen into the uterus under ultrasound guidance. The collected fluid can be tested for genetic disorders, chromosomal abnormalities, and certain infections. While amniocentesis can provide valuable insights, it also carries some risks, including miscarriage, which is why it is usually recommended for women with higher chances of complications.