Lower back pain. It is common for a bulging disc to occur in the lower back. When bulging discs occur in the back, it usually affects the feet, calves, thighs and buttocks. The pain usually occurs along the path of the sciatic nerve. A bulging disc that occurs in the lower back can lead to other problems. This condition can cause someone to experience numbness in the seat area. It also leads to saddle anesthesia, which is a loss of sensation in the buttocks, thighs and the perineum. A person with a bulging disc may have problems with bladder control, loose bowels and your legs will become progressively weaker. These symptoms are very serious symptoms that require medical attention.