The symptoms of acute lumbar disc bulge often occur in clinical practice due to sudden external force on the patient’s lower back or a posture maintained for too long. The first clinical manifestation is that the patient feels pain in the lumbar region, with pins and needles or electric shock-like sensation, positive local pressure pain, positive percussion pain, positive straight leg raise test of both lower limbs, and obvious obstruction of the patient’s bending activities. The patient may have tingling pain or loss of skin sensation in both lower extremities, and the dorsal extension of the thumbs of both feet may be weakened, and in severe cases, there may be abnormal bowel movements. When these symptoms occur, the first step in treatment is to instruct the patient to rest in bed, give traction to both lower limbs, and administer mannitol to lower the pressure in the spinal canal and reduce the irritation to the nerve roots.