Is multiple sclerosis hereditary?

Worse: Many patients with MS fell worse in the heat.

No proof: No conclusive proof that m s is transmitted by genetics ( hereditary) but slightly higher incidence is noted in some families.

Complex: Multiple sclerosis is an issue of genetic susceptibility, not the usual heredity, and risk runs about 3-5% if mother has it, 1-2% if father has it. But without specific environmental triggers, the disease will be unlikely to manifest.