Viability Scan: Purpose, Procedure & What to Expect
A Viability Scan is an essential early pregnancy ultrasound performed to confirm fetal heartbeat and assess the early development of the baby. It provides reassurance that the pregnancy is progressing normally and helps identify potential early concerns.
What Is a Viability Scan?
A viability scan is an early pregnancy ultrasound, usually done between 6 to 8 weeks of gestation, to confirm:
- Presence of a live embryo
- Fetal heartbeat
- Proper early growth and development
- Gestational age confirmation
- Number of embryos (single or multiple pregnancy)
This scan plays a key role in early antenatal care.
Why Is a Viability Scan Important?
1. Confirms Fetal Heartbeat
The primary purpose of a viability scan is to confirm a healthy fetal heartbeat, indicating a live and developing pregnancy.
2. Assesses Early Fetal Development
The scan evaluates:
- Fetal pole development
- Crown-rump length (CRL)
- Normal growth for gestational age
3. Detects Pregnancy Complications Early
It helps identify:
- Threatened miscarriage
- Missed abortion
- Delayed fetal growth
Early detection allows timely medical management.
4. Provides Emotional Reassurance
Hearing or seeing the heartbeat provides emotional comfort, especially for women with previous pregnancy losses or high-risk pregnancies.
When Is a Viability Scan Done?
| Gestational Age | Findings |
|---|---|
| 6 weeks | Fetal pole & early heartbeat |
| 7 weeks | Stronger heartbeat, clear embryo |
| 8 weeks | Normal growth & movement |
Most doctors recommend a viability scan after 6 weeks for accurate confirmation.
Types of Viability Scans
1. Transvaginal Ultrasound (TVS)
- Best for early pregnancy
- Detects heartbeat earlier
- Clear and precise imaging
2. Abdominal Ultrasound
- Usually done after 7–8 weeks
- May not detect early heartbeat clearly
The choice depends on gestational age and clinical need.
What to Expect During the Scan
- Scan duration: 10–15 minutes
- Safe and painless procedure
- Heartbeat may be seen or heard
- Immediate explanation of results by the doctor
Is a Viability Scan Safe?
Yes. Viability scans use ultrasound sound waves, not radiation, making them completely safe for both mother and baby.
When Should You Seek Medical Attention?
Contact your doctor immediately if you experience:
- Vaginal bleeding
- Lower abdominal pain or cramps
- History of miscarriage
- Sudden loss of pregnancy symptoms
A viability scan helps guide appropriate care.
FAQs – Viability Scan
What is a Viability Scan?
It is an ultrasound scan that checks for fetal heartbeat and early development to confirm a viable pregnancy.
When should a Viability Scan be performed?
Usually between 6–10 weeks of pregnancy.
Why is a Viability Scan important?
It confirms that the pregnancy is progressing normally and helps detect early complications.
Is it safe for the baby?
Yes. It is a non-invasive and safe procedure.
[details Can a Viability Scan detect multiple pregnancies? Yes, it can detect twins or higher-order multiples early in pregnancy. ]
Conclusion
A Viability Scan is a crucial step in early pregnancy care, confirming the baby’s heartbeat and ensuring proper early development. It offers reassurance, supports accurate diagnosis, and helps guide further antenatal care.
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Dr. Divya J G Dr. Divya J G is an exceptional and highly skilled Obstetrician & Gynaecologist, recognised for her expertise in maternity care, pregnancy scans, and advanced gynaecological and laparoscopic surgeries. She completed her MBBS at Mysore Medical College and Research Institute (MMCRI) and earned her MS in Obstetrics and Gynaecology from Bangalore Medical College. With over 13 years of clinical experience, Dr. Divya J G is known for her meticulous attention to detail and patient-centred approach. She carefully understands each woman’s unique health needs and delivers personalised, evidence-based care to ensure safe pregnancies, effective treatments, and optimal outcomes.
Dr. Divya J G has extensive experience in managing a wide range of obstetric and gynaecological cases, including comprehensive maternity care, gynaecological surgeries, infertility evaluation, and IVF-related treatments. Beyond her clinical expertise, she is known for building strong trust and confidence among her patients through compassionate, patient-centred care and clear communication. From fertility counselling and conception planning to pregnancy, delivery, and post-treatment recovery, Dr. Divya J G ensures that every woman feels well-informed, supported, and at ease throughout her medical journey. Her commitment to ethical practice and evidence-based treatment consistently contributes to positive patient experiences and successful outcomes.
