Friend when we see mucus with a loose stool this is a sign of inflammation in the large intestines. This can be caused by many different medical conditions. It will not be possible for me to pinpoint the exact underlying cause without a hands-on examination and some testing, I am sorry. But, common causes are dietary indiscretion, ingestion of a foreign body, parasites, infections, or even part of a systemic disease to name a few causes.
In this case, I would recommend a hands-on examination with your family veterinarian for a hands-on examination and fecal analysis as an initial screening test. In the meantime, this is what you can do:
1- Do not give things like Pepto Bismol or Imodium.
2- No food or water for 6-8 hours, need to give her gastrointestinal tract time to rest. Then, offer a small amount of water followed by a diet of rice (75%) and boiled boneless chicken or ground beef (25%) until the stool is back to normal then wean him back into her regular diet. Keep her indoors in a cool room and no exercise when fasting.
3- Supplement with a probiotic, these are friendly bacteria that help with regularity and inflammation. You can buy this over the counter in any pet store.
4- Follow up with your family veterinarian for a hands on examination and fecal analysis as an initial screening test.
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