There is a risk in whatever you do, especially in this hobby. Just be a bit more careful who you see and what you do. I have said quite a few times, when I was going to holistic spas and Premier chains, I always turn the lights on bright and stay besides the switch to visually inspect the girls lips and face for cold sores and rashes and such. I came across only 2 occasions in my 15-20 yrs of hobbying. One girl at Alton Towers and one girl at Don Mills and York Mills condo with cold sores on their lips. I just paid then $30 each and told them not to work when they are having their out break.
Just be careful and know who you are dealing with. I know lots of guys in here still seeing deep throat Maggie who is giving BBBJCIM to every customer for over 8 -10 yrs at least 15-20 customers a day. She is still in business, so go figure out what are the risks involve seeing a lady like her. I myself had seen her about 3-4 time a few yrs back but couldn't take a chance with her any more, so i stopped. Thank God I never catch anything from her or anyone in those days. . Now I am quite happy with my semi legit girls and feel much safer with them. Even then I still do my regular visual inspections with every girl I see no matter who it is. In my SP days I was wild and crazy, doing BBFS with most Korean agency girls. Luckily never got anything.
My best suggestion is do regular check up at least 3-4 times a yr. . Some STi has no symptoms and you don't know you are carrying them. Can you imagine what could happen if you pass it on to your wife and love ones?