There is some mixed data, but the consensus is that MS is strongly correlated with other autoimmune diseases. This article has a good summary of several papers

There is some mixed data, but the consensus is that MS is strongly correlated with other autoimmune diseases. This article has a good summary of several papers on the subject. You can scan down to the section on "Studies of Autoimmune Comorbidities in Multiple Sclerosis" https://touchneurology.com/multiple-sclerosis/journal-articles/autoimmune-comorbid-conditions-in-multiple-sclerosis/ https://touchneurology.com/multiple-sclerosis/journal-articl...