Experts believe that dogs have a higher pain tolerance than humans, making it difficult to easily identify signs of pain in them. Some dogs exhibit pain clearly, while others have a high threshold for it, making it harder to notice. Nevertheless, there are several ways to recognize when a dog is in pain. The sooner you detect the signs, the better the chance to alleviate the pain. Although pain might seem trivial, it can escalate into something more severe if left unchecked.
Steps
Look for Changes in the Dog’s Body

Observe for Lameness. One of the most noticeable signs of pain is lameness. A dog will limp when it places weight on an injured or painful leg.
- If the pain is localized to one leg, the dog will avoid using it and may even rely completely on the other three legs.
- A dog in pain is also likely to move less, avoiding turning or spinning as much as usual.

Be aware of other movement-related issues. In addition to limping, you might notice other changes in your dog’s ability to move. For instance, your dog could have difficulty going up or down stairs. The dog may also turn more slowly than usual or show reluctance toward certain activities.
- Hesitating when going up or down stairs, running, or jumping is also a sign that your dog might be in pain.

Watch for changes in posture. Pay attention to how your dog holds its tail and head. Abnormal posture changes, such as a drooping tail, a tucked tail, or a lack of tail flexibility, could indicate pain.
- Your dog may be in pain if it is holding its limbs differently than usual.
- Pain can cause your dog to hunch its back, making it difficult to stand or move properly.

Observe the dog's breathing. When in pain, a dog might breathe quickly or with difficulty.
- If your dog is breathing fast in cooler weather, it might be experiencing pain.

Check your dog’s eyes. The eyes can reveal signs of pain in your dog. If there is pain around the eye area, your dog might squint, have red eyes, a cloudy appearance, or discharge.
- Your dog might rub the painful area. If it is rubbing its eyes persistently, it could be uncomfortable in that region.
- The eyes might also indicate pain elsewhere on the body. Squinting could signal discomfort in the eyes or another part of the body.
- Dilated pupils can also be a sign that your dog is in pain.
Look for behavioral changes

Coi chừng chó cắn. Đau đớn có thể khiến chó thay đổi hành vi. Chó hiền bị đau cũng có thể cắn.
- Ngay cả một con chó chưa bao cắn người cũng có thể cắn khi bị đau nghiêm trọng.
- Chó có thể cắn nếu bạn chạm hoặc di chuyển chỗ đau của chó. Phản ứng tự nhiên khi chỗ đau bị chạm vào là quay về phía chỗ đó. Chó có thể cố gắng cắn theo bản năng.
- Trước tiên, bạn có thể để ý các dấu hiệu cảnh báo như gầm gừ. Chó chuẩn bị cắn có thể hất tai về phía sau và nhe răng ra. Đây là cơ chế tự vệ tự nhiên của chó để ngăn cơn đau nặng thêm.

Giám sát những thay đổi trong cách ăn uống. Chó bị đau có thể ăn ít lại. Nếu đột nhiên chán ăn, chó rất có thể đang bị đau.
- Chó bị đau miệng cũng có thể nhả thức ăn ra.

Theo dõi dấu hiệu bồn chồn. Chó bị đau thường hay bồn chồn hoặc khó thả lỏng. Bạn có thể nhận biết dấu hiệu bồn chồn của chó bằng cách quan sát chó đi tới đi lui, thay đổi tư thế liên tục hoặc đi lên/đi xuống thường xuyên.

Chú ý thay đổi trong giấc ngủ. Chó bị đau có thay đổi thói quen ngủ nghỉ. Chó bị đau có thể ngủ nhiều hơn bình thường hoặc khó ngủ.

Lắng nghe những thay đổi liên quan đến âm thanh. Chó có thể phát ra những âm thanh bất thường như rên rỉ, thút thít, thậm chí gầm gừ khi bị đau đớn.
- Những âm thanh này thường liên quan đến một chuyển động nào đó, ví dụ như thức dậy. Bạn nên chú ý điều này để nhận biết cơn đau của chó.
- Chó sủa bình thường có thể đột nhiên im lặng khi bị đau.

Watch for signs of avoidance behavior. Dogs may show signs of avoidance, such as hiding or distancing themselves from people or other animals when they are in pain. This is a way for them to prevent the pain from worsening.
- If a dog turns its head away or avoids interaction while you pet it, it could be an indication that the dog is in pain. Pay attention to these behaviors in dogs that typically enjoy being petted.
- Such behaviors may also be accompanied by the dog becoming more withdrawn or less communicative than usual.
- You might also notice that the dog becomes more depressed or indifferent when in pain.
- It's important to note that some dogs may actually seek more attention rather than avoid it when in pain. Watch for signs of avoidance or a desire for increased attention.

Observe the dog's bathroom habits. Keeping track of your dog's regular bathroom habits can help you spot potential issues.
- If the dog is in pain, you might notice a change in their posture while urinating or defecating. For example, male dogs typically lift one leg to urinate, but they may not do this when in pain.
- You may also observe changes in the frequency of bathroom visits. The dog may even have accidents while trying to get to their usual bathroom spot in discomfort.
- The dog's stool could change in consistency, as they might be more stressed when trying to defecate while in pain. This could lead to constipation.
Advice
- Be cautious not to cause further injury to the dog. Sometimes, you will need to identify the specific location of the pain. The only way to do this is by gently pressing or moving the area that you suspect may be painful. A veterinarian can help identify the source of the pain, as they are trained professionals who won’t cause further harm to the dog. Attempting to diagnose it on your own could result in injury.
- You don’t have to pinpoint the exact area of pain. Instead, focus on identifying that the dog is in pain. Once you've confirmed that, consult a veterinarian to find a solution for relieving the pain.
- Recognizing pain in dogs can be challenging. Paying attention to even the smallest changes in behavior can help you detect pain more easily. If you observe your dog’s typical actions and behavior, you will be able to spot any unusual shifts more effectively.
Warning
- Do not attempt to administer medication to your dog without guidance from a veterinarian. Pain relievers and anti-inflammatory drugs for humans can be dangerous for dogs, especially when given in the wrong dosage.
- The signs mentioned not only indicate that the dog is in pain but may also point to other underlying issues. If the symptoms persist or worsen after 24-48 hours, you should immediately consult a veterinarian.
- If you're unsure whether the dog is in pain, it’s best to take your dog to the vet for an examination.
