An anomaly scan, also known as a fetal anatomy ultrasound or level 2 ultrasound, is a detailed ultrasound examination typically performed around 18-22 weeks of pregnancy. The purpose of this scan is to assess the fetal anatomy and detect any structural abnormalities or birth defects. During the anomaly scan, the healthcare provider evaluates various aspects of the fetus's development, including the brain, spine, heart, kidneys, limbs, and other organs. They also examine the placenta and amniotic fluid levels. The anomaly scan is an important part of prenatal care, allowing healthcare providers to identify any potential issues early in pregnancy so that appropriate medical management and counseling can be provided to expectant parents. While the anomaly scan can detect many structural abnormalities, it is important to note that not all birth defects can be identified with ultrasound, and further testing may be needed in some cases.