{"id":968,"date":"2026-03-04T19:34:40","date_gmt":"2026-03-05T00:34:40","guid":{"rendered":"https:\/\/www.tenwestvet.com\/blog\/?p=968"},"modified":"2026-03-18T16:56:25","modified_gmt":"2026-03-18T21:56:25","slug":"top-10-signs-your-dog-is-sick","status":"publish","type":"post","link":"https:\/\/www.tenwestvet.com\/blog\/top-10-signs-your-dog-is-sick\/","title":{"rendered":"Top 10 Signs Your Dog Is Sick"},"content":{"rendered":"
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\"Sick<\/figure>\n<\/div>\n\n\n

If your usually happy pup suddenly isn\u2019t acting like themself, you\u2019re not alone in wondering how to tell if your dog is sick. Dogs are experts at masking discomfort, which means even small changes can be meaningful. At 10 West Bird & Animal Hospital<\/a> in San Antonio, TX, we help pet owners sort through the confusing mix of dog illness symptoms so they know what\u2019s normal and what\u2019s worth a closer look.<\/p>\n\n\n\n

Below are some of the most common signs your dog is sick, along with guidance on when to take your dog to the vet.<\/p>\n\n\n\n\n\n\n\n

1. Changes in Appetite<\/h2>\n\n\n\n

A sudden drop in appetite, or a sudden increase, can be one of the earliest symptoms your dog is sick. Skipping meals occasionally may be no big deal, but consistent changes often signal underlying digestive issues<\/a>, dental pain, or metabolic conditions.<\/p>\n\n\n\n

2. Vomiting or Diarrhea<\/h2>\n\n\n\n

Not every upset stomach is an emergency, but repeated vomiting or diarrhea isn\u2019t something to wait out. Frequent GI issues can indicate infections, dietary indiscretion, toxins, pancreatitis, or other conditions that need prompt attention.<\/p>\n\n\n\n

3. Low Energy or Lethargy<\/h2>\n\n\n\n

If your energetic sidekick seems to lose their spark overnight, take note. Lethargy is one of the most common sick dog symptoms and often pairs with other problems such as fever, pain, or infection.<\/p>\n\n\n\n

4. Breathing Changes<\/h2>\n\n\n\n

Any noticeable shift in the way your dog breathes deserves attention. This includes:<\/p>\n\n\n\n