Why do owners prefer to tail dock certain breeds of dogs? This is because of breed standard and aesthetics. There are specific tail lengths for specific breeds. Moreover, this procedure is also recommended to promote hygiene and prevent self-mutilation. Veterinarians primarily consider the age of the puppy and overall health condition before doing it. The ideal age is 2-5 days without the use of anesthesia. It would take less than an hour to finish and with minimal risk. The suture used should be removed after 5-7 days. Just be cautious about the mother's grooming habits when the puppy is placed back to her.