How often is it safe to have pet scans?

PET scans are generally considered safe, but the frequency with which they can be performed depends on individual circumstances and the reason for the scans. For most patients, they are typically done every few months to a year, especially in the context of monitoring cancer treatment. However, the radiation exposure from PET scans should be weighed against the potential benefits, and decisions should be made in consultation with a healthcare provider. Always follow your doctor's recommendations regarding the frequency of imaging tests.