Hi there Thanks for your question at HCM Groin pain is most commonly associated with strain of of the muscles, ligaments, or tendons present in that area. This is more likely if the onset of your pain is associated with any injury which happened while playing or after you slipped or twisted.Such pain would usually respond over 2 to 3 days to rest, pain killer medicines and ice application Another common cause of groin pain is an inguinal hernia. An inguinal hernia occurs when internal tissues push through a weak spot in the groin muscles. This can create a bulging lump in your groin area and cause pain. Kidney stones (small, hard mineral deposits in the kidneys and bladder) or bone fractures can cause groin pain as well. On the other hand if you have been having pain for more than week and it has not responded to the above measures then other cause of one sided groin pain have to be considered. These include urinary tract infection, any inflammation in ovaries ( in females) and testes (in males), intestinal inflammation, hip joint related pain etc Groin pain due to pinched nerve in the spine is relatively uncommon and is usually associated with involvement at higher spinal levels mainly L2/3/4 levels. An L4/5 and L5/S1 problem is less likely to be associated with groin pain. At present there is not enough evidence to say that your L5/S1 disc is the reason for you groin pain. I would suggest you to see an orthopaedic surgeon , so that any lesion around the hip area can be ruled out and once that is done other less common cause can be ruled out in a step wise manner based on your response. Hope this helps All the best Regards Dr.SBK