Is it normal for the hair on puppies tail to fall off?

No, it is not normal for the hair on a puppy's tail to fall off. If you notice this happening, it is important to take your puppy to the vet to rule out any underlying medical conditions. Some possible causes of hair loss in puppies include:

- Allergies: Allergies to food, environmental allergens, or parasites can cause a puppy to lose hair.

- Fleas and ticks: Parasites like fleas and ticks can cause skin irritation and hair loss.

- Mange: Mange is a skin condition caused by mites that can result in hair loss.

- Ringworm: Ringworm is a fungal infection that can also cause hair loss.

- Hypothyroidism: This is a condition in which the thyroid gland does not produce enough thyroid hormone, which can lead to hair loss.

- Other medical conditions: Hair loss can also be a symptom of other medical conditions, such as kidney disease, liver disease, or cancer.

It is important to take your puppy to the vet if you notice them losing any of their hair, as early diagnosis and treatment of the underlying cause will give your puppy the best chance of a full recovery.