What are signs of parvo?
Sophia Vance
Published Jan 05, 2026
Some of the signs of parvovirus include lethargy; loss of appetite; abdominal pain and bloating; fever or low body temperature (hypothermia); vomiting; and severe, often bloody, diarrhea. Persistent vomiting and diarrhea can cause rapid dehydration, and damage to the intestines and immune system can cause septic shock.
What is the first signs of parvo in a dog?
Dogs that develop parvo will show symptoms three to 10 days after being exposed. Symptoms include: vomiting, lethargy, diarrhea (usually bloody) and fever. The gastrointestinal tract is where the heaviest damage occurs.What are the early stages of parvo?
If your dog shows any of the following early signs of parvo, see your veterinarian immediately:
- Profuse, bloody diarrhea.
- Vomiting.
- Loss of appetite.
- Dehydration.
- Lethargy.
- Abdominal pain.
- Weakness.
- Collapse.