Jack Osbourne was diagnosed to have a Multiple Sclerosis.
Jack Osbourne has Multiple Sclerosis
Multiple Sclerosis is an autoimmune disease that primarily affects the central nervous system. This disease usually starts as an inflammation in any part of the central nervous system and definitely, cause damage to it. Some presenting manifestations patients having will be muscle problem, balance and gait (walking), kidney problems, eyesight and more.
In the case of Jack Osbourne, he first experience eye problem and through it, he was confirmed to have multiple sclerosis.