When it comes to litter box issues with your cat, it's important to know when to seek veterinary help. While some problems can be resolved with simple changes, others may indicate underlying health issues that require professional attention.

Here are a few scenarios where it is advisable to consult a veterinarian:

1. Sudden changes in litter box behavior: If your cat has been consistently using the litter box and suddenly starts avoiding it or using it less frequently, it could be a sign of a medical problem. For example, urinary tract infections, bladder stones, or even kidney disease can cause discomfort and lead to litter box aversion.
2. Straining or pain during urination or defecation: If your cat shows signs of pain, discomfort, or struggles while using the litter box, it could indicate a urinary or gastrointestinal issue. Conditions like feline lower urinary tract disease (FLUTD) or constipation require veterinary attention to alleviate the discomfort and prevent further complications.
3. Changes in urine or stool: Any noticeable changes in your cat's urine or stool can be a cause for concern. Blood in the urine, frequent small amounts of urine, diarrhea, or consistently loose stools may indicate an underlying medical condition that requires diagnosis and treatment.
4. Excessive licking or grooming of the genital area: Cats may excessively groom their genital area when experiencing discomfort or pain. If you notice your cat focusing on this area more than usual, it's advisable to consult a veterinarian to rule out any urinary or reproductive issues.
5. Accidents outside the litter box: If your cat suddenly starts having accidents outside the litter box, it could be a behavioral issue or a medical problem. A veterinary professional can help determine the root cause and provide appropriate solutions.

Remember, each cat is unique, and any change in litter box behavior should be taken seriously. It's always better to be safe and consult a veterinarian to rule out any potential health issues.

For more information, you can refer to the following resources:

• American Association of Feline Practitioners - Feline House Soiling
• Cornell Feline Health Center - Feline House Soiling

Remember, always consult with a veterinarian for personalized advice based on your cat's specific situation.