In some cases of TS, inheritance cannot be determined. These cases are called sporadic and their cause is unknown. Individuals with TS can expect to live a normal life span. Although the disorder is generally lifelong and chronic, it is not a degenerative condition. TS does not impair intelligence.
Tics tend to decrease with age, enabling some patients to discontinue using medication.
In a few cases, complete remission occurs after adolescence. Although tic symptoms tend to decrease with age, it is possible that neuropsychiatric disorders such as depression, panic attacks, mood swings, and antisocial behaviors may increase. Although students with TS often function well in the regular classroom, it is estimated that many may have some kind of learning disability. When attention deficit-hyperactivity disorder, obsessive compulsive disorder, and frequent tics greatly interfere with academic performance or social adjustment, students should be placed in an educational setting that meets their individual needs. These students may require tutoring, smaller or special classes, and in some cases special schools.