question: I have been having back pain for a number of years.The local doctor suggested an MRI which was done last July. It shows a L4 L5 disc prolapse and herniated disc impinging on the nerve route.I am having moderate pain and am doing physiotherapy now for one month.There is a slight improvement.Clinically doctor says there is no weakness in the limbs. But am having some tingling sensation in both legs and this sensation is more prominant when I lie down.The doc is suggesting surgery. I wanna know if the symptoms does not get worse can I delay the surgery.My physio says that some people improve after 3 or four months of physiotherapy.My pain is more when I sit for a long time or stand for a long time.The shooting pain which was there is the leg is very much better after starting the physiotherapy.