"My father has diabetes and my mother has high blood pressure — can I still get insurance?" The question reflects a worry many families share. Let's understand how hereditary conditions and insurance actually work, without guessing.
Which conditions are linked to genetics
Among those common in the Thai context are thalassaemia (an inherited blood disorder), some types of diabetes, high blood pressure, familial high cholesterol, certain heart conditions, and some cancers whose risk rises when close relatives have had them. Note that "having a family history" means increased risk, not a verdict that you will certainly develop it — health behaviour also plays a very large part.
What family history has to do with the application form
Some application forms ask about the health history of immediate family — whether parents or siblings have suffered a serious illness or died of a particular condition prematurely. The practice is the same as for every question on the form: answer truthfully what is asked. What is not asked, you need not guess at and add yourself.
How companies view family history
Family history is only one factor among several in the assessment. The main weight still rests on the applicant's own current health, the latest test results, and behaviour. Someone whose family has a history of diabetes but who controls their weight, has normal blood sugar and exercises regularly is in a better position than the family figures alone would suggest. A family history therefore does not always mean refusal or a loaded premium.
The more risk there is, the earlier you should plan
The important logic here: if you know which conditions run in your family, taking out insurance while your own health is still good is the moment when the terms are best. Once a condition has shown itself, it becomes a pre-existing condition, which is usually outside the cover of any new contract. Waiting until you are "sure you'll get it" is expensive waiting.
Look after yourself alongside the cover
Insurance handles the financial impact, but reducing the actual risk lies in looking after yourself: an annual check-up to catch signals early, controlling your diet, exercising, and asking your doctor about specific screening appropriate to your family history — such as cancer screening suited to your age and risk.
In short
A family history does not usually prevent you from getting insurance, and it is all the more reason to start early while your own health is good. Declare information truthfully, keep looking after yourself, and let insurance act as the financial net behind you. If you are concerned about your own family's particular situation, let's talk through the details.