The dog has not pooped. Check the dog's eating situation in the past two days. If it eats less, it is normal for the dog to have no poop for a day or two. If you have been eating and drinking normally for more than three days without having bowel movements, it is recommended that you take it to the hospital for diagnosis. If constipation is diagnosed, it is recommended to choose an appropriate treatment plan based on the severity of the constipation. If you have constipation for a long time, you need to consider whether there are other reasons, such as perineal hernia.