<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, Ive been experiencing constipation, lower abdominal pain, and weakness in my elbows. What could be causing all of these symptoms?  <response>: Based on your symptoms, its possible that you have Urethral Valves, a condition in which excess tissues grow in the urethra, causing a blockage that can lead to complications such as constipation and lower abdominal pain. Weakness in the elbows is not a common symptom but can be one of the associated symptoms. We will need to run some tests to confirm the diagnosis. 