The loss of tip hair on a puppy’s tail in one month is generally caused by hair shedding. Owners do not need to worry too much. Dogs will enter the moulting period in spring and autumn. At this time, their coats will fall off in large quantities, not only on their tails but also on their tails. , hair loss will also occur in other parts, so you can pay more attention to see if there are other symptoms.

Of course, it may also be malnutrition. If a one-month-old puppy does not eat enough breast milk, then It is possible that malnutrition may cause the tip of the tail to disappear. You can help the dog replenish nutrition in time. Try to give priority to breast milk. If the dog's mother does not have enough milk, you can buy some pet milk powder.