The herniated disc of the 3rd/4th lumbar spine can cause the following symptoms: 1. lumbar pain, when the herniated disc compresses the nerves around the disc, there can be symptoms of lumbar pain, often very significant after the lumbar area gets cold, bending over and holding objects, or sitting for a long time; 2. numbness and pain of the lower limbs, when the herniated disc compresses the nerve roots, there can be symptoms of numbness and pain of the lower limbs. A herniated disc in the lumbar 3/4 leads to numbness and pain in the anterior thigh, knee, and anterior medial calf; 3, dysfunction, a herniated disc compressing the cauda equina nerve can lead to urinary and fecal disorders, often leading to constipation or incontinence. Men will have sexual dysfunction, and will also have symptoms of decreased skin sensation and numbness in the perineum.