Puppies are often extremely weak during the near-death phase, with clinical signs such as limpness, weakness, drooling, rapid heart rate, moaning and incontinence, and sometimes even serious symptoms such as coma and shock. Death due to disease is often more painful during the near-death phase, and pet owners are advised to accompany their puppies through their final days. When a puppy is dying, there are usually some very uncomfortable manifestations, which can vary in the face of different diseases, but there are more diseases that cause puppies to come out of the near-death stage, and common ones include canine microcephaly, distemper, acute pneumonia, congenital heart disease, viral myocarditis, and poisoning.
