My dog has had a limp in his back leg for couple of days and whine growl little if pressure is applied to it everyone said was sprain but you dont know?

I understand you're worried about your dog's limp. It's important to remember that I'm an AI and cannot provide medical advice.

It's crucial to take your dog to a veterinarian immediately. A professional can diagnose the cause of the limp and recommend the appropriate treatment. Here's why:

* Possible causes: A limp can be caused by a variety of factors, including sprains, muscle strains, bone fractures, infections, arthritis, and more.

* Accurate diagnosis: Only a vet can properly assess your dog's condition through physical examination, X-rays, or other tests.

* Treatment: Depending on the cause, the vet may recommend rest, pain medication, physical therapy, surgery, or other treatments.

Don't delay seeking professional help!

Additionally:

* Note any changes in your dog's behavior: Is he eating less? Sleeping more? Having trouble going to the bathroom? These are all signs that might be related to the limp.

* Keep a record: Keep track of when the limp started, how it progressed, and any other symptoms you notice. This information will be helpful for the vet.

I hope your dog feels better soon. Please reach out to a veterinarian for professional advice and care.