It may be a serious symptom for a dog to vomit coffee, so it needs to be taken to the vet as soon as possible. This symptom may mean that the dog's body has serious problems, such as digestive tract ulcers and internal bleeding.

Parvovirus is a highly contagious virus, which can cause symptoms such as fever, shortness of breath, vomiting and diarrhea in dogs. If the dog is infected with parvovirus and has brown vomit, it may mean that the dog has begun to have symptoms of internal bleeding. At this time, the dog should be sent to the veterinarian as soon as possible to avoid the deterioration of the condition and endanger the dog's life.

In addition to parvovirus, other reasons may also cause dogs to vomit brown substances, such as foreign bodies in esophagus, problems in organs such as liver and pancreas, taking drugs to treat bone diseases and so on. However, no matter what causes the brown vomit, you need to see a doctor in time.

Generally speaking, if a dog has symptoms similar to parvovirus and vomits brown substances at the same time, it is necessary to seek medical attention immediately, investigate the problem as soon as possible, and adopt correct treatment methods to avoid endangering the dog's health and life.