Hi . This is an excellent question. I want to share with you this article on active surveillance from our editorial team which notes that "Typically, a person undergoing active surveillance visits their doctor regularly and receives a PSA test roughly once every 6 months. They may also receive a digital rectal exam (DRE) once a year. However, it’s important to note that these guidelines are not set in stone and can be adjusted based on your specific situation, and how closely your doctor believes you should be monitored. Another issue may be how often you receive repeat biopsies. Since biopsies for prostate cancer can carry risks and are invasive, it may be recommended that you not have a repeat biopsy until other screening options indicate that the cancer may be spreading:" https://prostatecancer.net/treatment/active-surveillance. I want to add to this that your comfort level also plays a role. Don't hesitate to have a discussion with your doctor about your specifics, what they recommend, and sharing your feelings about how often you are willing to go between various tests. Wishing you the best. Richard (ProstateCancer.net Team)