There isn’t a need to actively search for gallstones, neither is there a need to actively search for gastritis for that matter. So for gastritis and gallstones, you only really need to get it checked if you’re symptomatic. It means that if you do a health screening, you get an ultrasound done, and it shows gallstones -- but if you don’t have symptoms, then you can actually choose to leave the gallstones alone. But of course with the understanding that in the next 5 years around 15% of such cases start to experience symptoms. So that’s one thing to consider.
In terms of checking for piles, similarly, if you’re not symptomatic, you don’t need to actively look for piles. On that note, if you do have bleeding but you don’t have any of the pain or any of the prolapse that is associated with piles, and you’re 40 and above, then it is certainly reasonable that you get a full colonoscopy done.
For those that are younger than 40, if you’re worried and particularly have a family history of colon cancer, and also worried about the complications and side effects of colonoscopy, there is a role to do what we call a limited scope. A flexible sigmoidoscopy. And that’s because essentially if you’re bleeding -- if you have fresh blood that you can see from the bottom, in all due likelihood it’s somewhere near the anus. And the flexible sigmoidoscopy covers up about 30-40cm, which for most cases is enough to diagnose fresh blood.
But on saying that, I will advise that if you’re above 40, you should get a colonoscopy done.