You should get a yearly physical no matter your age. It’s free and the peace of mind is priceless. A simple blood draw shows your PSA level as well as a ton of other levels such as Lymph Nodes, sodium levels, vitamin B levels, etc. it shows a ton of different levels and it shows the levels you should be at and what levels you are at. It’s all put online in a portal and you can make adjustments to diet as needed. For your PSA, you want to watch it as it’s a problem if it goes higher each year. Is worth doing just to see your PSA levels. Pay the small extra cost and have them do a fecal occult test to check for blood in the stool, a sign of colon cancer and at 35 or 45, do the Gold Star Colonoscopy