is there a genetic component for MS?

Answer 1

The genes a person inherits help determine whether that person is at increased risk for developing MS. While there is evidence from studies that this genetic component exists, it appears to be only one factor among several that determine who gets MS. Most likely, an individual's genetic blueprint ultimately determines if that individual will be susceptible to a triggering factor in the environment, which in turn initiates the autoimmune process that leads to the development of MS.