Penile Lump

I just discovered a lump near the end of my penis, just under the crown on the left side.  It is under the skin, and fairly  hard, but you can move it slightly (like a vein).  I know it was not there just a few days ago.  It is about 1-2cm long and about 2mm wide.  It almost feels like an oversize vein.  I have had sex only with my wife, and I know she has not been with anyone.  

Just since discovering this, my sex drive has not really decreased, but it is slightly more difficult getting an erection, although I can still get erections in the middle of the night.  There are no other symptoms, just this lump.  

I'm nervous...is it likely to be just a small cyst which will slowly dissolve on it's own?  Where did this come from, and is it likely to be cancerous?

Thank you.  

[Kevin Pho, MD]

Possibilities may include a cyst, thrombosed vein, penile plaque or infection.  Cancer is also possible.  Without examination, it would be difficult to tell.

The next step would be a referral to a urologist.  An ultrasound can be considered to further evaluate the lesion.  If the diagnosis continues to be unclear, a biopsy would be the definitive test.  The treatment and prognosis of this would depend on what is found.  

Followup with your personal physician is essential.

This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.

Thanks,
Kevin, M.D.