Why Do Pet Rabbits Die Suddenly? Does Gi Stasis Cause Sudden Death In Pet Rabbits? Does Ingesting Poison Cause Sudden Death In Pet Rabbits? Does Erratic Movement Cause Sudden Death In Pet Rabbits? Does Cancer Cause Sudden Death In Pet Rabbits? Does Ingestion Of Sharp Objects Cause Sudden Death In Pet Rabbits? What Causes Sudden Death In Pet Rabbits? Does Euthanasia Cause Sudden Death In Pet Rabbits? At BackyardBunnyNews, we help people that want to raise rabbits and bunnies by collating information about the hare raising experience. If you are wondering why pet rabbits die suddenly, there are several common causes. Some of these include GI Stasis and ingesting poison. Other causes of sudden death in rabbits include cancer and erratic movements. But no matter what the cause is, there are ways to prevent or lessen the damage.