A lumbar disc bulge at l4-l5 is generally not serious, but you need to be wary of a lumbar disc bulge developing into a lumbar disc herniation. A lumbar disc bulge at l4-l5 is an imaging description that can be categorized as the mildest type of lumbar disc herniation. Lumbar disc bulging only suggests that the disc has a certain degree of backward bulging, the annulus fibrosus is relatively intact, not completely ruptured, and the nucleus pulposus has not fallen into the spinal canal to cause radiating pain in the lower extremities, so the majority of patients are asymptomatic or only localized symptoms of low back pain. However, lumbar disc bulging may develop into lumbar disc herniation, so patients diagnosed with lumbar disc bulging need to be self-vigilant, prevention-oriented, prevention and treatment. For example, bed rest, reduce stooping and heavy labor, and wear a waist cuff for protection if necessary. If the symptoms are not relieved after lifestyle modification, the patient should consult a doctor in time for treatment under the guidance of the doctor.