Possible Causes:
* Soft Tissue Injury: This could be a sprain, strain, or muscle tear. Your dog might be experiencing pain when she tries to put weight on the paw.
* Bone Injury: A fracture or dislocation could also cause pain and lameness.
* Inflammation: Conditions like arthritis or tendonitis can cause pain and stiffness, making it difficult for your dog to walk.
* Neurological Problem: A nerve issue or spinal injury could lead to weakness or paralysis in the leg.
Why your dog might let you touch the paw:
* Pain Tolerance: Dogs have different pain thresholds. Your lab might not be experiencing excruciating pain, or she might be used to being touched.
* Lack of Understanding: She may not associate the pain with the paw itself.
What to do:
It's crucial to schedule an appointment with your veterinarian as soon as possible. They can examine your dog, perform diagnostic tests (like X-rays), and determine the underlying cause of the lameness.
In the meantime, avoid:
* Putting weight on the affected leg: This can worsen the injury.
* Giving any medication without your veterinarian's approval.
Remember, only a veterinarian can properly diagnose and treat your dog's condition.