When my penis is flacid, you can't see it. But when erect, I have a hard white lump underneath the skin on the shaft of my penis. It isn't movable. It didn't used to be painful, but has gotten slightly larger and is now mildly painful. I've had it for years and just didn't think anything of it. What can it be?
It can be a sebaceous cyst. Sebaceous cyst is filled with a soft, whitish brown material that sometimes oozes out onto the skin's surface. This material is called sebum. Get it examined from a dermatologist. You can also get a FNAB done. FNAB is aspiration of the material of the lump which is done by a fine gauge needle (22 or 25 gauge) and a syringe.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
This site complies with the HONcode standard for trustworthy health information.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.