Some patients can recover in 3~6 months after radiation therapy for laryngeal cancer, and some patients cannot recover completely. Radiation therapy for laryngeal cancer mainly kills cancer cells through radiation, which can make the tumor shrink or even subside. Since the time of radiation therapy is usually 3~6 months, after radiation therapy for laryngeal cancer, the tumor can usually shrink or completely subside during this period of time, and some patients can recover completely. However, radiation therapy for laryngeal cancer does not necessarily eliminate the tumor, and some patients will have residual tumor, at which time the possibility of recurrence is also higher and complete recovery is impossible. After radiation therapy for laryngeal cancer, patients still need to go to the hospital for regular checkups, and may need to cooperate with doctors to take some other treatments in order to reduce the chance of tumor recurrence.