Is it likely to have an excessive bone growth on a vertabrae that hits the sciatic nerve instead of a bulging or herniated disc?

Age can help. Incidence of disk herniations is highest in th middle range 35 to 55 while bone spurs more likely when older surgically it is academic question. Remove pressure nerve feels better disc herniation have a15% reoccurence rate bone spurs dont usually grow back . But symptoms can return with settling and time.