<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing lower abdominal pain for a few days now. What could be the reason behind it?  <response>: Well, based on your symptoms, I suspect you may have a hydrocele of the testicle, which is a collection of fluid in the sac surrounding the testicle. This can cause discomfort and pain in the lower abdomen. 