When dogs experience retching, it may be caused by gastrointestinal discomfort, canine distemper, kennel cough, bronchitis, etc. They need to go to the hospital for examination to avoid aggravation of the condition. If you do not frequently retching and coughing, it may be caused by choking on food or catching a cold. If you cough frequently, you are more likely to get sick. It is best to go to the pet hospital for examination in time to avoid aggravating the condition and delaying treatment. You should pay attention to your dog's diet and avoid raw, cold and hard-to-digest foods.