Question: Hi all I m 20 weeks pregnant & my cervical length is 3.5 in anomaly scan. Is this normal?
Answer: Hello dear, normal cervical length is 4 to 5 cm when not pregnant. at 24 weeks gestation, the average cervical length is 3.5 cm. When cervical length is less than 2.2 cm, women face a 20 percent probability of preterm delivery.
Your length is in normal range so don't worry.
Take care....