Most people feel nothing. The danger of rupture rises as an abdominal aneurysm enlarges, which is why diameter is measured and repeated.
01
What the measurement means
Ultrasound or CT reports a diameter in centimetres. Smaller abdominal aneurysms are usually kept under surveillance. Larger ones are discussed for repair if the person is fit enough that repair is safer than observation. The threshold is a clinical decision, not a number this website can apply to an individual scan.
02
Symptoms that matter
- Usually none
- A pulsatile abdominal feeling
- A pulsatile swelling behind the knee
- Sudden severe abdominal or back pain
- Collapse or a fast faint feeling
- A suddenly cold, painful foot
03
When to seek assessment
A scan that mentions an aneurysm should be shown to a doctor even if you feel well. Sudden severe pain or collapse is an emergency, whether or not an aneurysm was known before.
04
How aneurysms are usually evaluated
Ultrasound is often enough for surveillance of an abdominal aneurysm. CT angiography is used when repair is being planned, because the surgeons need the shape of the neck and the iliac arteries. Blood pressure control and stopping smoking are relevant whether or not an operation is close.
Questions patients ask
If I have no pain, is the aneurysm safe?
Absence of pain does not mean the wall is strong. Many aneurysms that rupture were painless the day before. Follow the surveillance interval you were given.
Can medicine shrink an aneurysm?
Medicines do not reliably shrink an established aneurysm. They are used to control blood pressure and to reduce the risk of heart disease while the aneurysm is watched or repaired.
This page is general education about vascular conditions and the way they are usually assessed. It does not diagnose a person or replace a consultation. Decisions about tests and treatment depend on an individual clinical assessment. Nothing on this website promises a particular result, a cure, or freedom from pain.
