Children's self-harm behavior may be a serious emotional problem, so we must actively intervene and treat it. If the main reason is quarreling, emotional excitement, and children's irritability, resulting in some self-harm behaviors, at this time, you can give verbal comfort, give more encouragement, and then give children more tolerance and let them have free space.
It is definitely more important to treat children as adults, respect them and accept them. If you already have very serious emotional problems, such as anxiety and depression, your child may be unhappy, even pessimistic, negative and suicidal. This time is very dangerous. The most important thing is to see a psychologist in time and even consider medication.