09 Dec 2025

Will my family medical history affect my life insurance?

Insurance companies take into consideration a variety of factors when assessing how much you should pay for your life insurance (this is known as your premium). Such factors include your age, whether you’ve suffered any illnesses, whether you smoke or are overweight and your family’s medical history.

Several generations of a family sitting together


Calculating the probabilities

Insurance companies use the information given in application forms as well as statistics on average life expectancy and past claims data to determine a fair price for life insurance. So, for example, if you’re a smoker, you will pay more than a non-smoker as you are more likely to suffer health problems associated with smoking.

The same reasoning applies when it comes to your family’s medical history. It all comes down to probabilities; if a close relative has experienced a serious medical condition, there’s a higher likelihood that you could suffer the same illness. This is especially true of inherited conditions, like certain types of bowel or breast cancer. This is why insurers may take your family’s medical history into consideration when they determine the cost of life insurance.


Why don’t insurance companies make prices simpler?

You might wonder why insurance companies don’t simplify the process by making premiums the same for everybody. The answer is straight forward, premiums would rise for everyone. If insurers didn’t ask customer’s about their health or increase the premium for those more likely to claim, there would be an overall increase in the volume of claims. This would mean premiums would rise for everyone. If the premium rate a customer pays reflects the risk they represent, this is fair to all our customers.


How family history affects your life insurance with us

Conditions that occur in some families that may have an impact on your premiums include:

  • Heart disease, for example heart attack, angina
  • Diabetes
  • Epilepsy
  • Stroke
  • Cancer, for example bowel (colon) breast or ovarian
  • Polycystic kidney disease
  • Familial adenomatous polyposis
  • Huntington’s disease
  • Multiple sclerosis
  • Cardiomyopathy
  • Parkinson’s disease
  • Alzheimer’s disease
  • Mytonic dystrophy
  • Motor neurone disease.

However, the mere fact that your family has a history of one or more of these conditions doesn’t automatically mean your life insurance premiums will be affected. We will also take into account how many relatives (including your natural parents, brothers and sisters) were affected, how close the relationship might be, the age of the relative when the disease occurred as well as your own age and gender.

Our life insurance


No one likes dealing with the unexpected. Make sure your loved ones are protected, no matter what happens in life. Take a look at our guide to life insurance to learn more.

Lisa Redman

Lisa Redman

Senior Propositions Manager, Retail Protection

Lisa works in UK Retail Protection Proposition Development team and is responsible for identifying and assessing new product and proposition enhancements to meet customer needs, with a strong emphasis on regulatory compliance ensuring all required governance is completed.

More about Lisa

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