It's important to see a veterinarian immediately if you notice any discharge from your guinea pig's rear end. Green discharge, especially near a female, could be a sign of several serious health issues, including:
* Urinary tract infection (UTI): UTIs can cause pain, discomfort, and changes in urine color and odor.
* Gastrointestinal issues: Green discharge might indicate problems with the digestive system.
* Reproductive issues: In males, the green discharge could be related to the testicles or prostate.
Do not attempt to diagnose or treat your guinea pig yourself. A veterinarian will be able to properly assess the situation and provide the necessary treatment.
In addition to seeing a vet, you can try these steps:
* Isolate the male guinea pig from the female: This will prevent the spread of any potential infections.
* Monitor the male for other signs of illness: These include lethargy, loss of appetite, weight loss, and changes in behavior.
* Keep the male's cage clean and dry: This will help to prevent further complications.
Remember, early intervention is crucial for the health of your guinea pigs. Contact a veterinarian as soon as possible.