It’s just as small as your poop, and it’s a little less, and then it stinks a little bit. I mean it.
Milk cats don’t defecate on their own, so the first time you want to lick the cat’s tongue, if there is no female cat, you need to manually wipe the urethral orifice and the mouth of the urethra with a warm wet paper towel every time. It stimulates the milk cat to urinate and defecate. Generally, it will be convenient for the first time
This can be done by training kittens to go to the bathroom.
At the beginning, the kitten will defecate everywhere. The owner can bury his stool on the litter pan, which tells the kitten that he should go to the toilet here.
My family started by feeding the kitten with the Champions League cat food. After 15 minutes, the cat can be put in the litter basin to remind it to go to the toilet. If it doesn’t want to, let it play by itself. See if it wants to go to the toilet, use toys to divert attention, and then put it in.
If the kitten always goes to a place to defecate, you can observe that cats go to relatively fixed places. At this time, the owner can put the cat litter basin in that place. The smell of cat litter will induce the cat to go in and urinate.
It should be noted that if the kitten can’t use the litter basin, it may not bury its own stool. At first, it should scratch with the kitten’s paws, and it will learn after several times.
There are more and more stray cats outside. Many caring people will choose to adopt and go home or give out cat food regularly. How to judge the age of a kitten is helpful to the feeding and growth of cats. So, we can use the simplest method to judge the age of kittens.
1¡¢ Umbilical cord: if you see a kitten and the umbilical cord has not fallen off, it should not be more than three days.
2¡¢ Eyes: Generally speaking, kittens open their eyes in about 10 days, which is an average number.
3¡¢ Ear: at birth, the ear canal is closed. It starts to open on the 5th to 8th day. It can stand up in 15-20 days.
4¡¢ Teeth: the order of long teeth is: front teeth (10-15 days), canine teeth (15-25 days), and trough teeth (30-40 days)
Finally, it is suggested that if the milk cat does not have the necessary nutrition for its physiology, it should not be fed from the middle of the cat’s mouth to avoid choking.
Check the body shape and check the umbilical cord stump of the kitten. If you pick up a kitten, you need to make sure that you can take care of the newborn kitten.  Mothers of cats usually bite the umbilical cord after giving birth. The remnant will turn into a small piece and hang on the belly of the kitten.
A kitten’s umbilical cord stump usually scarred off three days after birth. If your cat has a small umbilical cord, it’s just a few days old.
Check the kitten’s eyes. Newborn kittens go through several stages of development, from opening their eyes to changing the color of their eyes. Looking at eye changes and color can help you guess the age of the kitten.
Kittens do not open their eyes until 14 days after birth, and some will open their eyes within 7 to 10 days after birth. If your kitten’s eyes are closed, it means that she has just come to the world. If your kitten has opened its eyes, it is at least a week old. 
If your kitten’s eyes are just open and squint, it’s about two or three weeks in size. When the kitten just opens its eyes, you will find that the eyes are bright blue. With the increase of age, the blue membrane will gradually disappear, and the eyes will return to the original color of the breed.
If you have a kitten that looks a little older and you notice that her eyes are beginning to change color, she’s gone for about six to seven weeks. At this time, the iris color of the eyeball will change into a permanent, mature variety. Note that if your cat grows up with blue eyes, you may not be able to see the color change, and you will not be able to rely on this method to identify age.
Check your ears. Like the eyes, a kitten’s ears undergo several stages of development. You can infer the age of a kitten by changing its ears.
If the cat’s ears are close to its head, it may be less than a week old. The newly born kitten has flat ears, which are close to the head. When it grows to five to eight days, it begins to open and stand up.
Watch the kitten’s ears stand up. It takes longer for the ears to open than for the eyes. Although the ear slowly opens in five to eight days, it takes a longer time to fully stand up. It usually takes two to three weeks to stand up.
Check the kitten’s deciduous teeth. Examining the appearance and development of teeth is a good way to estimate the age of kittens. A kitten without teeth is a newborn, less than two weeks old. If teeth appear, you can infer age based on the number and characteristics of the teeth.
The kitten’s deciduous teeth pop out of the gums at 2 to 3 weeks. The first tooth to grow out should be its front teeth. If you don’t see the teeth, you can gently touch the gums with your hands to feel the development of the teeth. 
Canine teeth (deciduous teeth) will grow in 3-4 weeks. They are located next to the front teeth and are long and sharp in shape.
The cat’s premolars (deciduous teeth) break through the gums at 4-6 weeks. They are located between canine and molar teeth.
If the kitten has all the deciduous teeth except the molars (deciduous teeth), it will be about 4 months old  . It should have:
6 incisors (incisors) in upper and lower jaw
Two canine teeth in the upper and lower jaw (one next to the last incisor on each side)
The upper jaw has three premolars.
The mandible has two premolars.
Check the constant pressure. If you see bigger permanent teeth in a kitten’s mouth, it should be older than four months. It may not be accurate to estimate the age of a cat by looking at the teeth of a kitten, but it is also a good way to estimate the age of a cat by observing its teeth.
The front teeth (permanent teeth) will grow out in about four months.
Between 4 and 6 months, canine, premolar and molar deciduous teeth will be replaced by permanent teeth.
If your cat has all the permanent teeth and four molars, it should be at least seven months old.
Note that the above references are based on healthy, normal cats. Medication and accidents can cause tooth loss or delay tooth growth.
Check the kitten’s weight. It may not be accurate to infer age based on body weight or body size due to different breed characteristics, but weight can be used as a reference factor to help you infer age.
The average weight of a healthy cat is about 3.5 ounces at birth, and increases by one tenth of an ounce a day. As a result, a normal kitten weighs between 3.5 and 5.25 ounces in the first week of birth. Note that a kitten weighing less than 3.5 ounces may be ill or malnourished and you need to take it to a veterinarian for treatment and examination.
A normal kitten born one to two weeks old weighs about 4-6 ounces (113-170 g) and is smaller than an adult’s hand.
Most of the 2-3-week-old kittens weigh between 6-8 ounces (170-225 g).
4-5-week-old kittens weigh between 0.5 and 1 pound (225g to 450g).
Kittens 7-8 weeks old weigh between 1.5 and 2 pounds (680g-900g).
A three month old kitten will gain a pound a month for the rest of the day, until it stabilizes at about 10 pounds. So a three pound cat is about three months old, and a four pound cat is about four months old. Although this is a general criterion, it is helpful to infer the age of a cat about 12 weeks old. Most cats weigh 10 pounds as adults. You can guess the age of the cat.