Genes are a big factor in these diseases, but they dont necessarily seal your fate.
So, whats going on?
Why does having one autoimmune condition increase your chance of developing others?

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When the immune system detects a threat, it jumps into action to fight off the invader.
Other times, the immune systems initial response isnt enough, and you get an infection or illness.
Everyone gets sick sometimes.
Overall, your bodys natural defense system does a pretty amazing job at keeping your body healthy.
But even the most well-designed systems can malfunction, and this is what happens when autoimmune conditions develop.
So back to the original question: why does having one autoimmune condition increase your chance of developing others?
Here are some of the theories surrounding why this occurs.
This is why some of these diseases may occur together.
Genetic factors like family history, sex, race and ethnicity appear to also influence susceptibility to autoimmune disease.
Similarly, race can also affect your risk.
Underlying factors like these can all increase ones genetic predisposition to developing autoimmune conditions.
Shared Risk Factors
Many autoimmune conditions share some of the same risk factors.
Exposure Accumulation
Another factor centers on something thats been termed the exposome.
Take a Vitamin D Supplement
Vitamin D helps keep immune responses in check.
Reduce Intake of Highly Processed Foods
A healthy gut microbiota is important for a healthy immune system.
Beneficial bacteria in the gut rely on the fiber and other compounds in these foods for survival.
Get Enough Sleep
Sleep disorders, such as insomnia, can wreak havoc on our healthincluding our immune system.
In a go-go-go society, getting a restful nights sleep can feel elusive.
Wondering how to get started?
Check out our4 Ways to Get a Better Night’s Sleep, According to an Expert.
Related:What Is the Autoimmune Protocol Diet?
One-quarter of people with autoimmunity have more than one of these conditions.
Genetics as well as lifestyle and environmental factors all factor into the development of these conditions.