Domestic dogs sometimes have symptoms similar to diarrhea or colds. These small problems, in fact, dog owners do not have to send their dogs to the pet hospital for treatment, which is convenient and easy, and also increases the fun of the feeding experience. Here are two simple injection methods for treating dogs. The first is subcutaneous injection, which can be used for drugs with better solubility and no irritation and some anti-epidemic vaccines. The injection sites are generally in the chest, middle neck, back of scapula, buttocks and back of dogs. In the injection method, firstly, the local area to be injected is sheared and disinfected, then the skin at the injection site is lifted by hand to wrinkle it, and the index finger is gently pressed down at the top to make it slightly concave, so that the right hand holds the syringe from the concave to the subcutaneous 1-2cm, and remember to disinfect the injection site after pulling out the needle. The second is intramuscular injection. The injection site can be selected from the thigh, waist, buttocks and back, neck and inner thigh muscles of dogs. If it is a small dog, it is generally enough to find family members to cooperate; If it is a large dog, it is best to have a proper dog. After alcohol disinfection at the injection site, hold the syringe so that the needle makes a 60-degree angle with the skin or vertically penetrates about 1-2cm, inject the liquid medicine, and disinfect the injection site after injection. When carrying out the above two injection methods, the action must be fast and accurate, the needle insertion should be simple, and the operation should be completed before the dog reacts. There is also intravenous injection, because this method is more professional, and it is generally best not to try it without professional training.