The Prevention Prescription, Part 2

In my last post I talked about vaccination, which is a form of primary prevention: it is the prevention of disease. There is also the concept of secondary prevention. In the case of secondary prevention, one has already has a disorder and doesn’t know it. Secondary prevention prevents the disease from getting to the point where it causes symptoms or complications (this is paraphrasing the definition on the CDC website). The example the CDC website uses is excising/taking a biopsy of a suspicious skin lesion before it becomes cancerous. Colonoscopy could also be put in the category of secondary prevention if pre cancerous polyps are found and removed before they become cancerous.

Sometimes it can be difficult to convince people to do some secondary prevention. Colonoscopy is one such item it is sometimes challenging to convince people to do. It is inconvenient as one needs to take a day off from work (if one is of working age and is working), has to have someone who’s willing to drive them home and requires taking things to clean their colon out so the colonoscopy can be done. When someone has a problem that can only be diagnosed by colonoscopy (eg: weight loss, fevers, and blood in the stool which could be a sign of inflammatory bowel disease, for example) people are worried enough about their health to get it.

Tertiary prevention is when one is trying to prevent complications or side effects of a disease which is already present. Examples of this are anticoagulation in people with atrial fibrillation, use of ACE inhibitors to prevent or slow kidney disease in diabetics.

In my next post I’ll take more about prevention and why it’s important.

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