If your child is naughty during vacation and cracks his chin at home, this is actually a very common problem and there is no need to worry or stress about it. If the crack is more than 0.5cm, deep below the dermis, and the flesh turns outward, it looks scary, you can go to the pediatric surgery department of the nearby children’s hospital, and it will be intermittently sutured with a relatively thin, for example, 5-0 absorbable thread, and the clearing and suturing is not very painful because the needle is very thin, and the parents don’t have to be too afraid of it. If the child is very resistant, and the parents do not tolerate, can be hospitalized to do the basic anesthesia, so that the child in the case of sleep to complete the cleaning suture, suture after the general 2 days to change the medicine once a week after the incision suture removal. It also depends on the cleanliness of the incision, if it has come into contact with wood chips or iron filings, it is recommended to do a skin test for tetanus as well as an intramuscular injection of tetanus within 24 hours after the surgery to prevent tetanus infection.