Armpit (axilla) ultrasound
Quick answer: An axilla ultrasound looks at the armpit, especially the lymph nodes and any lumps. Doctors order it for an armpit lump or swelling, or alongside a breast check.
- SampleImaging (no sample)
- TakesAbout 10 to 20 minutes
- Before the testNo special preparation is usually needed.
How the test is done
- 1You undress from the waist up and wear a gown
- 2You lie on your back with the arm on that side raised above your head
- 3Gel is spread in the armpit and the probe is moved over it
- 4The breast on the same side may also be scanned
What your results can mean
Reading your report
A sonologist or radiologist reports on the scan, and your doctor will explain what the findings mean for you.
If the result is outside the usual range
An armpit ultrasound can show swollen lymph nodes, an infected gland or abscess, a cyst, a fatty lump, extra breast tissue, or a node with features that may need a needle test.
Who usually has this test
People with a lump, swelling or pain in the armpit, and women having a breast check.
Risks and aftercare
No radiation is used; keeping your arm raised can feel tiring, and there is no special aftercare.
Names and options
Also called: axilla scan, armpit ultrasound, axillary lymph node scan
Options
- Left armpit
- Right armpit
Listed by the hospital as
- ULTRASOUND SCAN LEFT AXILLA
- RIGHT AXILLA ULTRASOUND SCAN
Questions about this test
Why are armpit lymph nodes swollen?
They often swell after an infection in the arm or chest, a skin problem, or a recent vaccine. Nodes that keep growing or last more than a few weeks should be checked.
Can extra breast tissue be in the armpit?
Yes, some women have breast tissue that extends into the armpit, which can swell during periods, pregnancy or breastfeeding. Ultrasound can tell this apart from a node.
Can I wear deodorant to an armpit scan?
It is better to avoid deodorant or powder on the day, as it can leave residue on the skin. Ask the hospital if you are unsure.
Related tests
Tamara Hospital & IVF Centre, Rajajinagar
34/3, 10th Cross Road, opp. Vardhaka Sardar Patel School, 1st N Block, 2nd Stage, Rajajinagar, Bengaluru 560010
The hospital is open 24 hours. Call before you come to check the timing for your scan or sample collection.
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This page explains each test in general terms so you know what to expect. It is not medical advice: your doctor decides which tests you need and what your results mean. Reference ranges differ between laboratories. Updated 4 November 2026.