Kittens are ugliest between 6 and 8 months after birth. During this period, the kitten’s body is growing and its hair is changing, so it looks thinner and its hair is messy. This period is an embarrassing period for cats. When the kitten grows well after 8 months, it will become fatter and more beautiful. The owner should strengthen the nutritional supply of the kitten during its development period and let the kitten bask in the sun more.