Your son is 27 and is having pain in the balls with pain in the lower stomach and the leg as well?

It's important for your son to see a healthcare professional as soon as possible, as these symptoms could indicate a variety of issues, including testicular torsion, an infection, or other medical conditions. Prompt evaluation is crucial to determine the underlying cause and to provide appropriate treatment. Encourage him not to delay in seeking medical attention, especially if the pain worsens or is accompanied by other symptoms like fever or swelling.