There are many views and reasons regarding health insurance, too many to properly discuss on this page alone. Often it is never thought about until an accident or illness raises the issue, by which time it is too late.
The main considerations will be factors which would make it likely to make a claim on such a policy, lifestyle, genetic likelyhood of illness etc. You will also need to think about loss of earnings and what regular bills need to be covered. Ideally your policy should maintain your home expenses as well as the cost of any treatment you will need.
Below are a few places to check for health insurance. But once you've decided on a policy, DON'T rush ahead and buy it, check and see if you could get cash back from the exact same policy.!