An anomaly scan, also called a TIFFA scan or level 2 ultrasound, is a detailed pregnancy scan in Indore doctors recommend between 18 and 20 weeks to check your baby’s organs, bones, and overall growth. It’s one of the most thorough scans of a normal pregnancy, and for most parents, the results are simply reassuring. If your doctor has just scheduled yours, here’s exactly what gets checked, what the appointment involves, and what it means if something unexpected shows up.
What Is an Anomaly Scan, Exactly?
An anomaly scan is a mid-pregnancy obstetric ultrasound that looks closely at your baby’s anatomy, structure by structure. You might hear it called a TIFFA scan, a level 2 scan, or a mid-pregnancy scan, they’re all the same examination. Unlike the earlier dating scan, which mostly confirms how far along you are, this one takes a much closer look at individual organs.
It uses the same ultrasound technology used throughout pregnancy and is completely safe. Most appointments run 30 to 45 minutes, sometimes longer if the baby is curled up in an awkward position or a view needs a second look.
Why Doctors Insist on the 18 to 20 Week Window
Timing genuinely matters here. By 18 to 20 weeks, your baby’s organs are developed enough to be seen clearly, but there’s usually still time left to plan further testing if something needs a closer look.
Too early, and some structures are simply too small to assess properly. Too late, and there’s less room left to act on anything the scan finds. That’s why your doctor is unlikely to bend much on this window, even if scheduling feels tight.
What Does the Scan Actually Check?
A typical anomaly scan works through your baby from head to toe:
- Brain and skull: structure, symmetry, and ventricle size
- Heart: chambers, valves, and blood flow
- Spine: checking for gaps or irregularities
- Kidneys and bladder: size, position, and function
- Abdominal wall: confirming it’s fully closed
- Limbs: arms, legs, hands, and feet
- Face: including the lips and palate
- Placenta and amniotic fluid: position and fluid levels
Your sonographer also measures your baby’s growth to confirm it’s tracking with your due date.
What Happens During the Appointment
Knowing what’s coming makes the whole thing easier. Here’s what a typical visit looks like:
- Before the scan: you may be asked to drink water so your bladder is comfortably full
- During the scan: gel goes on your belly, and a probe is moved gently over the area
- Repositioning: you might be asked to shift if the baby is blocking a view
- Duration: usually 30 to 45 minutes
- After the scan: your sonographer or radiologist discusses the findings with your doctor
Wear something loose and comfortable, it genuinely makes the process easier for you and the technologist.
Understanding an “Abnormal” Result Without Panicking
Hearing the word abnormal is unsettling, but context matters here. Most findings on this scan are what doctors call soft markers, small variations that are usually nothing and need no action beyond a routine follow-up.
Genuine structural concerns, a heart defect, a spinal issue, a kidney abnormality, come up in a small minority of scans. When they do, your doctor will usually suggest a next step: a fetal echocardiogram, genetic counselling, or a repeat scan a few weeks later, before deciding anything further. A single finding rarely confirms a diagnosis by itself.
| Type of Finding | What It Usually Means | Typical Next Step |
| Soft markers (e.g. mild fluid in kidney) | Often a normal variation, usually resolves on its own | Routine follow-up scan |
| Growth slightly behind or ahead of dates | Usually normal, sometimes monitored | Repeat growth scan later |
| Structural concern (heart, spine, kidney) | Needs specialist evaluation | Fetal echo, genetic counselling, referral |
| Placental or fluid level concerns | May need closer monitoring | Follow-up scans through pregnancy |
If your doctor does flag something, remember the scan is doing exactly its job, catching things early enough that you can act calmly rather than in a rush. If you want another set of eyes on the images, a second opinion from an experienced radiologist can add real clarity during this time.
How Is This Different From a 3D/4D Baby Scan?
Worth clearing up, since the two get mixed up often. The anomaly scan is a diagnostic 2D scan, its job is to examine structure and function in detail, not to produce a keepsake picture. A 3D 4D baby scan in Indore, by contrast, is usually booked a little later and focuses on giving you a clearer, more lifelike view of your baby’s face and movements.
Some clinics can capture 3D or 4D images during a routine scan if the baby’s position and fluid levels cooperate, but that’s a bonus, not the main purpose of the 18 to 20 week appointment. If you specifically want that keepsake-style scan, ask your sonographer when it’s best booked separately.
Is the Anomaly Scan Safe?
Yes. It uses standard ultrasound, sound waves, not radiation, the same safe technology used throughout pregnancy worldwide for decades. There’s no known risk to you or your baby, whether this is your first scan or your fifth.
The real value here isn’t just the picture, it’s the information. It gives your doctor actual data to plan the rest of your pregnancy care with, instead of guesswork.
Where to Get Your Pregnancy Scan in Indore
If you’re searching for sonography near Vijay Nagar Indore ahead of your 18 to 20 week appointment, Apoorva Diagnostic Centre’s radiologists report anomaly scans with the detail this stage of pregnancy calls for. Many mothers also search simply for obstetric ultrasound Indore providers around this time, and our sonography centre in Indore covers NT scans, anomaly scans, growth scans, and 3D/4D imaging across both our Vijay Nagar and Sapna Sangeeta branches, with a female sonographer available on request.
Frequently Asked Questions
What is checked during an anomaly scan at 18–20 weeks?
Your baby’s brain, heart, spine, kidneys, limbs, face, and abdominal wall, along with the placenta and amniotic fluid. The scan also confirms growth is tracking with your due date, and takes about 30 to 45 minutes.
What happens if the anomaly scan finds something abnormal?
Most findings are soft markers, minor variations that usually need nothing more than a routine follow-up. In rarer cases involving a structural concern, your doctor may suggest a fetal echocardiogram or genetic counselling. A single finding rarely confirms anything on its own.
Is the anomaly scan the same as a 3D/4D scan?
No. The anomaly scan is a diagnostic exam focused on structure and function. A 3D/4D scan is a separate appointment focused on getting a clearer image of your baby’s face and movements, usually booked later.
Is the anomaly scan safe for me and my baby?
Yes, it uses standard ultrasound with no radiation, and has been used safely worldwide for decades.
Can I get an anomaly scan near Vijay Nagar, Indore?
Yes, our Vijay Nagar branch offers anomaly scans along with the full range of pregnancy scans, usually with same-day reporting to your doctor.
The Bottom Line
The anomaly scan, done between 18 and 20 weeks, is a detailed, safe pregnancy scan that checks your baby’s organs, bones, and growth. Most results are reassuring, and even a flagged finding is usually a minor variation rather than anything serious. If something genuine does turn up, catching it now gives your doctor the best possible runway to plan the right care for you and your baby.
Approaching your 18 to 20 week window? Call 0731 495 2233 to book your anomaly scan at Apoorva Diagnostic Centre, or book online. Not sure what to do beforehand, water, fasting, what to wear? Our guide on how to prepare for an ultrasound scan walks through exactly that.