Clinically reviewed by Dr. Ponlawat Pitsuwan, Physician, Doctor Bangkok. Last reviewed: August 2026
An ultrasound scan uses sound waves to create real-time images of organs, tissues, and blood flow inside your body. It is safe, painless, and involves no radiation. In Bangkok, you can get one at a private clinic without a referral, often on the same day you walk in.
You have had a dull ache in your abdomen for weeks, or your GP back home told you to get a scan before you left. Now you are trying to figure out how it all works here. Bangkok has excellent diagnostic facilities, but knowing where to go, what to expect, and what it will cost is not always obvious when you are new to the system.
Getting an ultrasound scan in Bangkok is straightforward. No referral needed at most private clinics. English-speaking doctors. Transparent pricing. If you want to skip straight to booking, check the ultrasound scan cost in Bangkok page. If you want to understand what you are getting into first, keep reading.
What Is an Ultrasound Scan Used For?
An ultrasound is one of the most versatile tools I have. I order one several times a day in my clinic, for a wide range of symptoms.
The most common reason is abdominal pain or discomfort. An ultrasound shows the liver, gallbladder, kidneys, spleen, and pancreas clearly. It picks up gallstones, cysts, fatty liver changes, and fluid where there should not be any.
For women, pelvic and transvaginal ultrasounds check the uterus and ovaries. These are used to investigate irregular periods, pelvic pain, or suspected fibroids and ovarian cysts. A transvaginal scan, done with a small internal probe, gives a clearer picture of the pelvic organs than an external scan alone.
Thyroid ultrasounds are common, especially in patients over 40 or anyone with a neck lump or abnormal thyroid blood results. Breast ultrasounds are used alongside mammography. Musculoskeletal scans check tendons, joints, and soft tissue injuries. In pregnancy, obstetric ultrasound tracks fetal growth and position throughout each trimester.
One thing patients do not always realise: ultrasound can also guide procedures, such as draining a fluid collection or helping a doctor place a needle precisely.
Is an Ultrasound Safe?
Yes. This is one of the first questions I get, and the answer is simple. Ultrasound uses sound waves, not radiation. There is no X-ray exposure. It is the same technology used to monitor babies throughout pregnancy.
It is painless for almost everyone. The sonographer applies gel to your skin and moves a handheld device over the area being examined. You may feel mild pressure. That is usually it.
The only exception is a transvaginal scan, which some patients find slightly uncomfortable. It is over in a few minutes, and you are always told what to expect beforehand. You can choose an external scan instead if you prefer, though the image will be less detailed.
How to Prepare for Your Ultrasound Scan
Preparation depends on which scan you are having. Getting this right matters, because wrong preparation can make images harder to read.
For an abdominal ultrasound, fast for four to six hours beforehand. Avoid gas-producing foods the night before, things like beans, cabbage, and fizzy drinks, as they create air pockets that block the scan image. Water is fine to drink.
For a pelvic or bladder ultrasound, arrive with a full bladder. Drink around half a litre of water an hour before your appointment and try not to empty your bladder until after the scan.
For a thyroid, breast, or musculoskeletal scan, no preparation is needed. Wear comfortable clothing with easy access to the area being scanned. Avoid jewellery around the neck for thyroid scans.
When a Doctor Bangkok GP orders your scan, they give you specific preparation instructions at that same visit. You will not be left guessing.
Ultrasound vs CT Scan: Which One Do You Need?
Patients ask me this often, usually because they have been told they need "some kind of scan" and are not sure what the difference is.
An ultrasound is the first choice for soft tissue organs like the liver, gallbladder, kidneys, uterus, and thyroid. It is real-time, safe, and relatively affordable. A CT scan uses X-ray radiation and gives a more detailed cross-sectional image. It is better for suspected appendicitis, lung problems, trauma, or complex abdominal issues.
The short version: ultrasound first, CT if we need more detail or if the ultrasound cannot give a clear enough answer. Your doctor will tell you which one is right for you.
Ultrasound Scan Cost in Bangkok
Pricing in Bangkok varies depending on where you go and what type of scan you need. Here are honest figures.
| Scan Type | Private Clinic (approx. THB) | Large Hospital (approx. THB) |
|---|---|---|
| Abdominal ultrasound | 2,000 – 3,500 | 3,500 – 5,500 |
| Pelvic ultrasound | 2,000 – 3,500 | 3,000 – 5,000 |
| Transvaginal ultrasound | 2,500 – 4,000 | 3,500 – 5,500 |
| Thyroid ultrasound | 1,800 – 3,000 | 2,500 – 4,500 |
| Obstetric ultrasound | 2,000 – 4,000 | 3,000 – 6,000 |
| Breast ultrasound | 2,000 – 3,500 | 2,500 – 5,000 |
These figures are approximate. What drives the difference is not just where you go, but whether the radiologist fee, GP consultation, and image reporting are bundled or billed separately. Always ask before you book.
For current pricing, visit the Doctor Bangkok diagnostics page directly.
Clinic vs Hospital: Where Should You Get Your Ultrasound in Bangkok?
Many expats assume they need to go to a large hospital like Bumrungrad or Bangkok Hospital for a diagnostic scan. That is not always true, and it is not always the better experience.
Large hospitals have excellent equipment and full radiology departments. But they also have longer waits, more complex billing, and a system that can feel overwhelming. You may wait an hour or two, see different doctors at each stage, and receive a written report days later with no one to explain what it means.
At a private clinic, the experience is different. At Doctor Bangkok, the GP who orders your scan reviews the findings with you at the same visit or shortly after. No maze of departments. English-speaking doctors. An itemised receipt the same day. For most diagnostic ultrasounds, a private clinic is entirely sufficient and far more convenient.
If your situation is complex, we refer you to the right specialist or facility. That is part of what a good GP does.
Does Health Insurance Cover Ultrasound Scans in Bangkok?
Most expat health insurance plans cover medically indicated ultrasound scans. The key phrase is "medically indicated," meaning there is a clinical reason for the scan.
Direct billing is less common at private clinics. The more typical process is pay-and-claim: you pay at the clinic, then submit the receipt and documentation to your insurer for reimbursement. For this to work, you need an itemised receipt showing the scan type, date, clinic details, and any consultation fees as separate line items. Doctor Bangkok provides exactly this.
Some insurers also ask for a short clinical note from the treating doctor. Ask us when you arrive and we will sort it. Check with your insurer about pre-authorisation before your appointment, as some plans require this for diagnostic imaging even on routine scans.
Getting Your Results After the Scan
This is the part most patients do not think to ask about until they are sitting in the waiting room.
At most large hospitals, your scan images go to a radiologist who writes a formal report. That report then goes back to the referring doctor. You may wait a day or two and need a separate follow-up appointment to hear what the findings mean.
At Doctor Bangkok, the GP reviews the scan findings with you directly. Same visit, plain English, no separate appointment needed. If the findings are straightforward, you leave with clarity. If something needs further investigation, we discuss the next step there and then.
How to Book an Ultrasound Scan at Doctor Bangkok
You do not need a referral. You do not need to have seen us before. Walk in, or book ahead online.
Doctor Bangkok is on Sukhumvit Soi 13, a short walk from Nana BTS station. English-speaking GPs are available every day. When you arrive, the doctor takes a brief history, confirms which scan is right for you, and arranges everything from there.
Some scans can be done the same day. Others may be scheduled within one to two days depending on type and availability. For details on what is available and current pricing, visit the Doctor Bangkok diagnostics page.
Need an ultrasound scan in Bangkok? Doctor Bangkok offers diagnostic ultrasounds with no referral required, English-speaking GPs, transparent pricing, and same-day results on selected scans. We are on Sukhumvit Soi 13, a short walk from Nana BTS. Walk in or book online at doctorbangkok.co.th/diagnostics.
Frequently Asked Questions
Do I need a referral to get an ultrasound scan in Bangkok?
No referral needed at Doctor Bangkok. You come in, see the GP, and if a scan is appropriate, it gets ordered at the same visit. That is very different from the referral-dependent systems many expats are used to in the UK, Australia, or the US.
How much does an ultrasound scan cost in Bangkok?
A basic abdominal or pelvic ultrasound at a private clinic typically runs between 2,000 and 3,500 THB. Costs at large hospitals tend to be higher. The final price depends on scan type and whether the consultation and reporting fees are bundled. For current pricing at Doctor Bangkok, check the diagnostics page.
Will my health insurance cover an ultrasound scan in Bangkok?
Most expat insurance plans cover medically indicated scans. The usual process is pay-and-claim rather than direct billing. Doctor Bangkok provides itemised receipts suited to insurance reimbursement. Check with your insurer about pre-authorisation before you come in.
How do I prepare for an ultrasound scan?
It depends on the scan. Fast four to six hours for an abdominal ultrasound, arrive with a full bladder for a pelvic scan, and no preparation is needed for a thyroid or breast scan. Your Doctor Bangkok GP will give you specific instructions when the scan is ordered.
How long does an ultrasound take and when will I get my results?
Most scans take between 20 and 40 minutes. At Doctor Bangkok, the GP reviews findings with you at the same visit where possible, rather than making you wait days for a written report and a separate follow-up appointment.
Is a transvaginal ultrasound painful?
Most patients find it mildly uncomfortable at most, and it is over quickly. You will always be told what to expect beforehand. You can choose an external pelvic scan instead if you prefer, though the image quality will be less detailed.
Can I get an ultrasound scan in Bangkok without speaking Thai?
Yes. At Doctor Bangkok, all consultations are in English. The GPs explain your results in plain language and walk you through any next steps at the same visit.
Dr. Ponlawat Pitsuwan
Physician, Doctor Bangkok
a private medical clinic in central Bangkok. He sees expats, residents, and medical tourists for diagnostic assessments, general medical consultations, and health checks. His focus is straightforward, evidence-based care delivered in plain language.
Dr. Ponlawat Pitsuwan is a physician at Doctor Bangkok, a private clinic in central Bangkok. He sees expats, residents, and medical tourists for general medicine, wellness consultations, and IV therapy. His focus is straightforward, evidence-based care delivered in plain language.
