Ask a Dog Vet and Get Answers to Your Dog Health Questions
Hello , and thank you for using this site to help you.
I am sorry that Miko is not feeling well and in reading your post you have an emergency on your hands. When a dog is defecating black tarry looking stool it means there is bleeding inside, which is cause to see a Vet ASAP.
The swollen leg is also great cause for concern,
There is nothing you can do at home at this point.
It appears that you have requested a new Expert. Did you have additional questions that Sally did not address?