A CT scan uses X-rays and computer processing to create detailed cross-sectional images of the body.
A CT scan is ordered because of symptoms or findings such as severe pain, injury, breathlessness, fever, swelling, a suspected stroke, or a concern that needs a fast and detailed look inside the body.
CT helps when doctors need rapid detail in emergencies, want to look for internal injury, infection, cancer, bleeding, blockage, or complications that may not show clearly on a regular X-ray.
It is often used in emergencies, cancer assessment, trauma, infection, abdominal pain, and many other conditions because it is fast and detailed.
The scan itself does not treat disease, but its findings often shape urgent decisions, follow-up testing, or treatment planning.
This entry explains the procedure. Before you go, read the longer prep guide or find a centre that performs it.
