Is neutering a dog risky? What preparations should owners make before neutering a dog?

Is the risk of neutering a dog high?
The risk of neutering a dog is not high. Sterilization surgery is a very basic and common surgical operation. Compared with other surgical operations, the difficulty and risk of the operation are in a relatively low range, and the risks of the operation are almost negligible. But we have to face the risks that exist in all surgeries, including anesthesia risks. A more comprehensive preoperative examination can effectively reduce the risk of anesthesia. Inhalation anesthesia is more controllable and safer than intravenous anesthesia.
What you need to prepare before neutering your dog:
1. Dogs need to eat and drink for 6-8 hours before neutering. Because some dogs will vomit during the anesthesia process, fasting and fasting before surgery can effectively reduce the amount of vomit in dogs. It can effectively avoid the occurrence of aspiration pneumonia.
2. Try to avoid the dog’s estrus period during sterilization surgery. When a dog is in estrus, the blood vessels in its reproductive system will be filled and enlarged, causing the amount of surgical bleeding to be greater than normal. Therefore, neutering surgery should try to avoid the dog’s estrus period.
3. For some free-range dogs, the owner should try to bring the dog back indoors three days before sterilization. This can help you understand the dog's health status and ensure that its physical condition is normal during the sterilization operation.