Groin pain may be usualy because of open wounds in the upper body. Groin pain is due to
lack of lymphatic drainage into the blood stream. If the cause (wound) is treated then the
groin pain stops. Another cause may be due to end stage renal disease in which groin pain
occurs.
Every once in a while I get this. I went to the doctor and found that one of my legs were shorted then the other. So we needed to even this out. I bought a heel gel pad and have never had a problem since. Only wear it one shoe and right side.
Groin pain has many reasons. Some of the reasons are prostate enlargement,infection of testicles,inguinal hernia or it may be just a groin muscle pull. You will have to consult your doctor to rule out the corect diagnosis.