Dogs have black color stool when digested blood is present in the stools. This happen due to bleeding in the stomach. Many conditions can cause bleeding in stomach leading to black stools in dogs. Most common reasons are
1. Clotting disorders
2. GI tract ulceration
3. Foreign bodies in stomach
4. Cancer
5. Infections
6. Inflammatory gastrointestinal diseases
7. Metabolic diseases
8. Side effects of some medicines
9. Ingestion of heavy metals
10. Lack of blood supply to stomach
11. Shock
12. Liver and kidney failure
So, take your puppy to vet for differential diagnosis and treatment.
1. Clotting disorders
2. GI tract ulceration
3. Foreign bodies in stomach
4. Cancer
5. Infections
6. Inflammatory gastrointestinal diseases
7. Metabolic diseases
8. Side effects of some medicines
9. Ingestion of heavy metals
10. Lack of blood supply to stomach
11. Shock
12. Liver and kidney failure
So, take your puppy to vet for differential diagnosis and treatment.
