Can I go to a regular therapist with a low testosterone problem, or do I definitely need to see a urologist?

Yes, in most cases, your primary care physician can perform basic diagnostics and initiate treatment. International experts have concluded that men with testosterone deficiency often have concomitant issues such as excess weight or diabetes, which are typically managed by primary care physicians. However, in complex situations—for example, when a pituitary tumor or serious diseases are suspected—the doctor will refer you to a specialist. Therefore, it is best to start with your primary care physician: they will order a fasting blood test in the morning and assess whether treatment is needed.