In countries with privatized health care systems, the only way a person can be sure of having good health care in any event of their falling ill is by taking up insurance. Indeed, even in countries with the so-called ‘socialized’ health care, the same situation still holds. The latter case is because more often than not, there are long waiting queues before people can access what often turns out to be rather urgently needed health care; so that people opt to make private arrangements.Health insurance typically does not come cheap. But most people find the money expended on it as being money well spent; if only for the peace of mind they buy with it.It is from that type of a background, then, that you could find yourself out looking to purchase health insurance policy. But as you embark on such a shopping venture, there are a number of things you need to know and keep in mind all through. Here we explore the three most fundamental of them.1. That cheap often proves expensive in the long run: this would be a particularly important thing to know for people who go all out looking for the cheapest insurance cover the can get. Now while it may be possible to get health care insurance cover for almost every amount of money you mention, it is important to keep in mind what you would be foregoing by getting the cheapest health insurance. That is because there is always a tradeoff that has to be made in order for the cheap pricing to be made. And that trade off is more often than not in terms of coverage; so that you may get very cheap insurance which does not, unfortunately, cover the conditions you are at the greatest risk of. And that would put you in a bad predicament.2. That the trust matters a great deal in health care insurance: it is often said, in insurance circles, that the value of your insurance policy is as good as the reputation and the strength of the insurance company issuing it. Unfortunately, this is a message that does seem to get the ‘masses;’ at least going by the numbers of people who are purchasing health insurance without bothering to do a bit of research on the reputation of the companies they purchase the insurance from or at least to check out the financial strength of those companies that they buy health insurance cover from.3. That health care insurance specifications change from time to time: this makes it necessary for people with insurance cover to keep themselves updated with developments in the health insurance industry. What we are looking at here is a situation where a certain condition may have been covered at the time you bought the insurance, but where coverage gets withdrawn at some point down the line. It is also like where a particular health care provider was covered at the time you bought the health insurance, but where they get delisted some time down the line. Going through the ‘fine print’ of the health insurance policies, it is usually easy to notice clauses that allow the health insurance providers to change these types of things. And as long as the changes are ‘industry-wide’ they may feel no particular obligation to inform the policyholders of the developments individually.