Sudden sharp pain in the lower back can be caused by various factors, including muscle strains, herniated disks, and underlying medical conditions. Acute low back pain is most often due to a sudden injury to the muscles and ligaments supporting the back, which can be caused by muscle spasms, a strain, or a tear in the muscles and ligaments
. Other potential causes include compression fractures, ruptured or herniated disks, sciatica, spinal stenosis, and spinal infections
. It's important to seek medical attention to determine the specific cause and appropriate treatment for sudden sharp pain in the lower back.
