I've noticed this really large vein on the top side of my penis for the past few months, maybe more than a couple of years now. It's not painful, but it just seems off and looks quite pronounced. I haven't talked to a doctor about it yet, but I'm starting to get a bit worried. What do you think I should do next?

A prominent vein on the penis can be concerning. Here's a detailed guide to help you: *Possible Causes* 1. *Varicocele*: Enlarged veins within the scrotum. 2. *Penile venous leak*: Abnormal blood flow through penile veins. 3. *Thrombophlebitis*: Blood clot in a penile vein. 4. *Penile vein thrombosis*: Blood clot in a penile vein. 5. *Mondor's disease*: Thrombophlebitis of the superficial dorsal vein of the penis. *Diagnosis* 1. *Physical examination*: A doctor will examine the penis and scrotum to check for any abnormalities. 2. *Ultrasound or Doppler study*: To evaluate blood flow and check for any blockages or abnormalities in the penile veins. 3. *Blood tests*: To rule out any underlying medical conditions that may be contributing to the prominent vein. *Treatment* 1. *Varicocele*: Treatment may involve embolization, surgery, or lifestyle changes. 2. *Penile venous leak*: Treatment may involve surgery or lifestyle changes. 3. *Thrombophlebitis*: Treatment may involve anticoagulation medication, pain management, and compression. 4. *Mondor's disease*: Treatment may involve anticoagulation medication, pain management, and compression. *Advice* 1. *Consult a urologist or a primary care physician*: For a proper evaluation and diagnosis. 2. *Avoid self-diagnosis*: Don't try to diagnose yourself based on online research. 3. *Don't delay seeking medical attention*: Untreated conditions can lead to complications. 4. *Maintain a healthy lifestyle*: Eat a balanced diet, exercise regularly, and manage stress.