Most healthy pregnancies need only two or three routine scans, not one every month. The key ones are the dating scan, the anomaly scan, and growth scans when there’s a reason for them. Each has a job and a window, and getting the timing right matters more than the number.
According to Dr. Reshma K Priya, an experienced Gynaecologist in Bhubaneswar,
“Scans aren’t about collecting baby photos. Each one answers a specific question at a specific point in the pregnancy. Done at the right week, two or three scans tell us almost everything we need. Done randomly, even ten won’t.”
Which pregnancy scans do you actually need?
For a healthy pregnancy, the list is shorter than most people expect. Two scans do the heavy lifting, with a few extras added only when there’s a reason.
The scans that matter:
- Dating scan (around 11 to 14 weeks). Confirms your due date, checks the heartbeat, and shows whether you’re carrying one baby or more. A nuchal translucency (NT) measurement can be added here as part of Down’s syndrome screening.
- Anomaly scan (around 18 to 21 weeks). A detailed look at the baby’s organs, spine, limbs, heart, and the position of the placenta. This is the big structural check.
- Growth scans (third trimester, if needed). Track the baby’s growth and fluid levels. Routine only for higher-risk pregnancies, twins, or when something needs watching.
- Early viability scan (6 to 8 weeks, only if there’s a reason). Used for bleeding, pain, or a history of miscarriage to confirm the pregnancy is developing.
A low-risk pregnancy usually needs just the dating and anomaly scans. Extra scans get added when there’s a clear medical reason, not by default. And worth saying plainly: these scans check your baby’s health and development, not the sex, which clinics in India can’t legally reveal. The full schedule is part of routine pregnancy care.
Ready to stay informed and confident throughout your pregnancy?
When should each scan be done?
Timing is the part people get wrong. Each scan has a window where it gives the clearest, most reliable answers.
- 6 to 8 weeks. Only if there’s bleeding, pain, or a past miscarriage. Confirms the pregnancy is in the right place and developing.
- 11 to 14 weeks. The dating scan. Due dates are most accurate this early, and it’s the window for NT screening.
- 18 to 21 weeks. The anomaly scan. The baby’s organs are developed enough to examine in detail but still easy to see clearly.
- 28 weeks onward. Growth scans, if your doctor has flagged a reason. Spaced out depending on what’s being monitored.
Miss the window and the scan still works, but it tells you less. A dating scan at 16 weeks is far less precise than one at 12. If you’ve had early bleeding, an early scan at 6 to 8 weeks is the right first step rather than waiting.
Why Choose Rahat Hospital ?
Rahat Hospital is a women and child care centre in Saheed Nagar, Bhubaneswar, with scanning built into routine maternity care. Dr. Reshma K Priya, Founder and Chief Gynaecologist, plans each scan around your stage of pregnancy alongside specialists in fetal medicine and high-risk care. Dating scans, anomaly scans, and growth monitoring all happen on site, so your results are read by the same team looking after your pregnancy.
FAQs
How many scans are needed in a normal pregnancy?
Usually two: a dating scan at 11 to 14 weeks and an anomaly scan at 18 to 21 weeks. More are added only if there’s a medical reason.
Is it safe to have multiple ultrasound scans during pregnancy?
Yes. Ultrasound has no known risks to mother or baby when used for medical reasons. Doctors still avoid scans that aren’t clinically needed.
Can a scan tell the sex of my baby?
Clinics in India can’t legally reveal the baby’s sex. Pregnancy scans are done to check health and development, not gender.
What is the anomaly scan and why is it important?
It’s a detailed scan around 18 to 21 weeks that checks the baby’s organs, spine, and structure. It’s the main scan for spotting physical conditions early.
