Proteinaceous Plug Figure 1

Figure 1: Example of penis examination in the rat
and photos of proteinaceous plug.

Step 1:  After placing the rat on his back in your lap or on a comfortable surface, gently apply pressure with both thumbs, or thumb and index finger, approximately ½ cm distances on each side of the penis.

Step 2:  Carefully massage to project penis outward from the sheath.

Step 3:  Penis is protruded from sheath to check for a plug or any other abnormalities.

Photo 1: Shows firm, cream colored material protruding from the urethral opening of the penis.

Photo 2: Another view of proteinaceous plug material.

*Note: after removing plug with a clean cloth or disposable tissue, ensure the sheath is gently returned to its normal position covering the penis.


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