Nasoendoscopy and Laryngoscopy
You may be given a spray to numb the area at the back of your throat. Then, the nasoendoscope will be gently passed through your nose and down your throat. This gives your doctor a close-up view of your throat and voice box so they can look for any signs of cancer.
The test isn't painful but you may feel uncomfortable. It will only take a few minutes, often much less.
After the test, your throat might still feel numb. You should wait until the numbness has gone before you eat or drink anything.
During the test, the laryngoscope is moved through your mouth to the back of your throat. Sometimes a tiny camera or microscope is used to give a close-up view of your throat and voice box. Its normal to have a sore throat for a few days after the test.