Hello! Thank you for the query. Groin pain can be caused by inguinal hernia, enlarged lymph nodes, spine disc herniation, urinary tract stones. Inguinal hernia can give noticeable lump in the groin which does become bigger when standing and coughing (however there can be no lump at all). You can perform simple test. Put your hand on the groin where the pain is located and push gently. Try to cough while standing. If any movable lump will be palpated or the pain will aggravate hernia is possible. Enlarged lymph nodes sometimes can give groin pain. You should be able to find some lumps in the groin if enlarged lymph nodes. It is possible that your pain is caused by the spine disease, however such pain usually radiates from the back to the groin and leg. Urinary tract stones usually cause back pain, lower abdominal pain, radiating to the groin, frequent urinating and burning while urinating. I suggest you to have groin ultrasound performed (will rule out hernia and enlarged lymph nodes), urine analysis and abdominal ultrasound. If all this tests will be negative, you might have the spine surgery (as you are scheduled for it) and see if this will help. Hope this will help. Regards.