The hard lump at the site of the dog's injection has not gone away for a year. You should go to the hospital in time to confirm the nature of the tumor, and it is best to remove it surgically. Generally, intramuscular injections can easily cause local bleeding, infection, and finally the formation of blood bags. If parents find such a situation after the injection, they should use hot towels to treat it. Generally, the swelling will disappear after a month.

Tip:

Many parents always think that the medical staff’s skills are not good enough for injection and bagging. This has nothing to do with the skills of medical staff. There are some drugs The reaction is very strong and will cause hematoma after being injected under the skin. This is a normal phenomenon and will usually disappear in a few days.