Injections are required for scratches by cats. Because cats can transmit rabies and because the patient may contract tetanus after being scratched by a cat, a timely vaccination is required. According to statistics, 5% of rabies in humans is transmitted by cats. In addition to the possibility of contracting rabies from cat bites, scratching is also a risk. In addition, because cat claws are sharp and may contain a large number of germs, a deeper wound can easily cause a tetanus infection and requires a timely tetanus vaccination. In addition, since rabies and tetanus are both serious infectious diseases that can lead to death, timely vaccination after being scratched by a cat is a safer treatment method. After being scratched by a cat, it is recommended that the patient rinse the wound with soapy water and flowing water alternately for more than 15 minutes, and then disinfect it with iodophor or medical alcohol and cover it with clean gauze, while getting the relevant vaccination in a timely manner.