• A. 3.5 cm on USG
  • B. 10 cm on USG
  • C. 5.5 cm on USG ✓
  • D. 7 cm on USG


An aneurysm is a localized, abnormal dilation of a blood vessel caused by weakness in the vessel wall. Aneurysms can occur in various parts of the body, but the most common types are aortic aneurysms, which affect the aorta, the main artery that carries blood from the heart to the rest of the body. The decision to repair an aneurysm depends on its size and location, as well as the patient’s overall health and risk factors.

In general, the threshold for repairing an abdominal aortic aneurysm (AAA) is typically around 5.5 cm in diameter. This size is considered significant because it poses a higher risk of rupture, which can be life-threatening. However, the exact threshold for intervention may vary depending on individual patient factors and guidelines from medical societies.

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