Dogs and cats are experts at hiding signs of illness. In the wild, showing weakness makes them vulnerable — which is why many pets appear “normal” even when they’re unwell.
 Understanding early warning signs helps pet owners seek veterinary care promptly and protect their pets from serious complications.

Here are the most common signs that your pet may be sick.

1. Changes in behavior

Behavior is often the first sign of illness. Watch for:

• Lethargy or lack of energy
• Hiding or avoiding interaction
• Irritability or unusual aggression
• Sleeping more than usual
   

Any sudden behavioral change can indicate discomfort or illness.

 2. Loss of appetite

Eating less or refusing food can be associated with:

• Digestive issues
• Dental pain
• Kidney or liver problems
• Stress or infection
   

Persistent appetite loss should be evaluated by a vet.

 3. Changes in water consumption

• Drinking more than usual may indicate kidney disease, diabetes, or hormonal problems.
• Drinking too little can quickly lead to dehydration, especially in hot climates.
  
   

 4. Vomiting or diarrhea

Common causes include:

• Food intolerance
• Parasites
• Gastrointestinal infections
• Metabolic disease (liver, kidney issues)
   

Multiple episodes in a short time require immediate veterinary attention.

 

 5. Breathing abnormalities

This is a serious red flag.
 Watch for:

• Rapid breathing
• Loud or labored breathing
• Persistent coughing
   

These may be related to lung disease, heart disease, or respiratory infections.

 6. Skin and coat problems

Noticeable signs include:

• Excessive shedding
• Constant itching
• Redness or bumps
• Strong odor
• Bald patches
   

These may be caused by allergies, parasites, fungal infections, or bacterial infections.


 

7. Abnormal urination or defecation

Look for:

• Frequent urination
• Straining or difficulty
• Blood in urine
• Loose stool or constipation
   

These symptoms can indicate kidney disease, urinary tract issues, or intestinal problems.

 8. Eye and nose abnormalities

• Watery eyes
• Redness
• Thick or colored discharge
• Sneezing or nasal discharge
   

Often linked to allergies, infection, or respiratory illness.

 Conclusion

Pets can’t tell us when something is wrong. Recognizing early symptoms and scheduling regular health checkups are essential for keeping your pet healthy, comfortable, and happy.

For health checkups, vaccinations, or professional advice,
Aura Pets International Animal Hospital & Spa is available 24/7.
WhatsApp: +66 65 141 6964
We care for all pets with expertise, compassion, and international-standard veterinary service.