How to tell whether a puppy is good or bad?

Dogs, like people, will show up in physical and behavioral characteristics if they are uncomfortable, mainly mental outlook, secretions from ears, mouth, nose and eyes, hair, excrement, walking posture, body temperature and foot pads. Mental outlook: The mental outlook of a dog is an important sign of its health. A healthy dog should be active and show curiosity and fear of new things. And the quality of spirit is also the first signal to you. I think everyone should know how to judge a puppy's mental outlook, which is the most external and intuitive, so I won't say much. Ears: The first thing you have to do when choosing a puppy is to put it in a stable place, and then break your fingers on its side or behind its head. If the puppy's reaction is to look at the sound source actively, it means that his hearing is normal and there is no obstacle. Then turn his ear out and observe the situation inside it. If there are peculiar smells or sticky attachments, redness, trauma, bleeding and other conditions prove that his inner ear is damaged or his ear has parasites, these are unhealthy manifestations; If not, the puppy's ears are completely healthy. Oral cavity: Oral cavity examination mainly focuses on secretions, teeth, gums and breathing. Healthy dogs have no strange secretions except saliva. If there is foam secretion, it means that there is something wrong with the dog's health. Healthy dogs should have white teeth. If there is tartar or damaged teeth, it can be considered that there is something wrong with the dog's health, although it is not a big problem. Gums, dogs' gums should be pink. If his gums are gray, it means that there is something wrong with the dog's health, which may be caused by internal bleeding, weakness, malnutrition or congenital anemia, or other diseases. Breath is no more a matter of principle than teeth, but most dogs with bad breath prove that there is something wrong with their diet. Nose: In a healthy state, the dog's nose is wet (the dog's nose is dry after waking up, and so is the healthy dog), and the color of the runny nose is transparent and clear. If it is yellow and sticky with cough, it means that the dog has some respiratory diseases, such as upper respiratory tract infection, cough, pneumonia, or early canine distemper. When choosing a dog, you can shake some food in front of its nose with your hands. If he chases your hand and shakes your hand, his sense of smell is fine. Eyes: The dog's eyes should be clear and clean, bloodshot, with white membrane on the eyeball, a lot of gum in the corner of the eye, and prominent flesh in the corner of the eye (indicating that there is something wrong with the lacrimal gland). These are all unhealthy symptoms. When choosing, you can put him in a higher place, shake his hand in front of his eyes and observe his reaction. If he shows fear and doesn't jump down and follow your shaking eyes, then his vision is normal. Fur: The main purpose of checking the dog's skin is to prevent it from having skin diseases and body surface parasites, and gently separate its fur by hand. If the skin color is light pink, it means that the skin is healthy. At this time, you can focus on observing the skin around the dog's mouth, under the neck, behind the ears, under the armpits and at the root of the thighs, because these places are prone to mites. If the skin is flaky or flaky and red, it means that his skin has been infected with mites or fungi. I suggest you not to choose, because this disease is very troublesome to treat. If you find a lot of small black particles in your hair and your skin color is abnormal, it may be that he has fleas. Many dogs have dandruff, which is a sign of lack of vitamins and long-term lack of sunshine, or the wrong bath liquid is used for bathing, not illness. Excrement: Dog excrement is also a standard of dog health. If the dog has loose bowels and loose stools, it means that there is something wrong with its digestive system, or the intestinal flora is destroyed, and the most serious thing is parvovirus. If you can't see his excrement, you can lift his tail and see if there is excrement around his anus. Generally, only the hair around his anus will stick to shit. Pace: Everyone has seen the pace of a normal dog. If the dog's pace is abnormal, it may be because it is too small and its muscles and bones are immature. After three months, the dog's gait has a problem, indicating that the bone is injured or has been injured. There are also some dogs with brain injuries that can also cause sequelae in action, so please be careful when choosing. Body temperature: 38-39 degrees is the normal range. Foot pads: The foot pads of adult dogs are plump and firm; The dog's foot pads are soft and tender. If some dog pads are cracked, it means malnutrition. If the puppy pads are hard, it may be an early manifestation of canine distemper. These are some considerations when choosing a dog. I hope I can help you. In addition to measuring the dog's health according to the above standards, the safest thing is to go to a regular dog club to buy it, or go to the hospital for a physical examination after buying it in the dog market. I hope every friend can pick a healthy and lively dog that he always likes.