My mother is suffering from rectal cancer stage 3, she has undergone radiation +chemo for a month and now it has ended. The doctor said he will do a pet scan after a month and will give review on operation. Now from past few days she is suffering from continuous fever. Kindly guide why fever is staying permanently. She is 62 years of age.

Suggestions offered by doctors on Lybrate are of advisory nature i.e., for educational and informational purposes only. Content posted on, created for, or compiled by Lybrate is not intended or designed to replace your doctor's independent judgment about any symptom, condition, or the appropriateness or risks of a procedure or treatment for a given person.