How much harm does a brain CT scan cause to the human body?

Brain CT is a commonly used medical imaging technique for detecting and diagnosing brain disorders. Based on X-ray imaging principles, it can clearly display brain structures, helping doctors identify abnormalities. Brain CT exposes the body to a certain amount of radiation, although the dose is generally not high. However, frequent brain CT scans can lead to accumulated radiation exposure, which may have potential health effects. Additionally, the impact of brain CT on pregnant women and children requires special attention. Pregnant women should avoid brain CT scans whenever possible during pregnancy to prevent adverse effects on fetal health. Children are more sensitive to head radiation, so radiation doses should be carefully controlled during brain CT examinations to avoid negative impacts on their development.