Welcome to JustAnswer! I am a licensed veterinarian and specialist and will do my best to assist you today!

weight: normal;font-style: normal;font-variant: normal;text-decoration: none;">What I believe you are describing is a condition or situation known as "paraphimosis", when the penis does not retract completely into the sheath.

This can happen from an erection, straining to urinate, a mass on the penis or prepuce, or even a mass/tumor of the prostate behind the area preventing the penis from retracting back into the sheath.

What to do now?
- I would consider lubricating the exposed penis using a water based or petroleum gel. If you do not have access to a lubricant such as this, you can try a dilute / mild soap and warm (not hot water).

If this does not work, and the penis remains out of the foreskin / sheath, then I would strongly consider veterinarian evaluation as a persistent erection can cause blood supply problems.

This link may also help:
http://www.petplace.com/dogs/paraphimosis-and-phimosis/page1.aspx

This is meant to be a running dialogue, and for this reason it is very IMPORTANT that you reply using the REPLY TO EXPERT button if more information is needed at any time BEFORE rating.

Positive RATING (EXCITED FACE or 5 STARS) and bonus if happy is appreciated as this is the only way I know you have received the information and I receive credit for my time.

Please remember to ONLY rate my answer when you are 100% satisfied. IF you feel the need to rate "Poor Service" or "Bad Service", please STOP and reply to me via the REPLY TO EXPERT button with the issue you have. I will be happy to continue further and do everything I can to provide you with the service you seek.

Join thousands of satisfied customers by adding me to your bookmarks/favorites: CriticalCareVet.
Just type your future question in the text box to direct it to my personal attention.

With this communication - we are here to guide you in making the best decision for your pet. This is for informational purposes only. We are not allowed to diagnose and prescribe medications - rather provide a course of action to speak to your veterinarian about - and any medical therapy and treatment should only be performed after an in-person examination with your veterinarian as a professional-client relationship has not been established on the site. While information may be discussed, this is not intended as an encouragement for you to self treat your pet, rather information online, and any treatment provided should only be performed after consulting your veterinarian.