When your immune system malfunctions, harmful substances like cancer cells may be able to escape detection and elimination.
Some studies have even found a reduced risk of cancer in people with MS.
In addition, strategies to help prevent cancer when living with MS will also be explored.

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Different study methods and patient populations may somewhat explain the mixed findings.
Lifestyle factors, MS symptom-related factors, and the medications used to treat MS also probably play a role.
These differences may not have been teased out in various studies.
MS Symptom-Related Factors
MSsymptom-related factorscan also affect cancer risk.
They may have better access to cancer screening tools through their MS provider.
Alternatively, maybe their MS care competes with their time for preventive cancer screening tests.
Nevertheless, it’s important to not get too worried by all the research study nuances.
Instead, focus on the big picture.
They can also help prevent other serious conditions likeheart diseaseanddiabetes.
Seeing your primary healthcare provider for annual check-ups can help ensure that your cancer screenings are up-to-date.
Summary
The research examining whether having MS affects your risk for developing cancer is mixed.
While some studies have found a boost in cancer risk among people with MS, others have not.
A Word From Verywell
Coping with a lifelong disease like MS is no easy feat.
It requires inner strength, support from loved ones, and a trusting relationship with your healthcare team.
Frequently Asked Questions
MS is not known to cause leukemia (blood cancer).
It’s unclear at this time, as the research is mixed.
Overall, more studies are needed to answer this question.
Novantrone (mitoxantrone) is the only chemotherapy approved to treat MS. 2021;96(4):e501-e512.
2013;51(7):516-21. doi:10.1038/sc.2013.33