Such non-specific but deep rooted health concerns are becoming more and more common. They're encouraged by health horror stories from family, friends and from the media and deepened by searching on the internet. Privately, you can have screening blood tests, full body scans, computerised images of your brain, blood vessels or intestines - pretty much anything and everything that takes your fancy. But I wonder whether this is something that should be encouraged? The NHS doesn't think so, as apart from anything else it is about as cost-effective as a diamond encrusted toothbrush. But if money was unlimited, would it be a good idea for us to be fed through a scanner at regular intervals, just incase?
As far as I'm concerned, the answer should be a definite no, and I'll use David as an example of why. His request for a blood test to screen for prostate cancer was a perfectly sensible one. Prostate cancer is the second most common cause of cancer deaths in men in the UK, and it becomes more common over the age of 50. So, after a long discussion about the pro's and con's of testing, he went ahead and had the test. But it's no easy decision, as becomes apparent when you take a closer look at these pros and cons.
Pro's: If the test is negative, you'll feel reassured. If it's positive, you may pick up a cancer early, get treated quickly and not die. That's a pretty big pro. But here are the con's: 2 out of 3 men with a positive test will not have prostate cancer. This means that two thirds of men who go on to have a biopsy will turn out not to have cancer after all. When you know that a biopsy means having a probe with a needle attached inserted through your rectum and into your prostate this suddenly seems like a notable con. It doesn't get any better from here either, because if you are unluckily enough to have a positive biopsy result, there's often no way of telling whether the cancer that you have would ever cause you problems. Some do, some don't. So then you must decide whether you want to have treatment which can involve surgery (with the potential of nasty complications including impotence), radiotherapy and chemotherapy. If you decide not to, you have to live with the knowledge that you have a cancer that may or may not kill you. There's one further important con, and that's that a PSA test can miss a cancer and so can a biopsy.
The NHS has decided that the cons outweigh the pros in this case, and so whilst you can have the test if you ask for it, there is no national screening program in place. But this is just one disease. Imagine the possibilities for misadventure if we were to look for any conceivable problem with our health, year in and year out?
So whilst David had his test (it was negative), I tried to persuade James and Mark that in most cases, ignorance is bliss. I'm not sure that I did a great job of convincing them and I wouldn't be at all surprised if the private sector gets some revenue from these two. For me though, I'm just not in the business of looking for trouble...