Finger biting in children aged 7-12 may be caused by a lack of trace elements such as iron and zinc, as well as psychological factors such as stress and habits.
1. If the child is deficient in zinc or iron, the digestive enzymes in the mouth may have problems, causing the child to be prone to xenophagia, which manifests itself as a fondness for eating special things, and then finger biting may occur.
2. Psychological factors: children come to a new learning and living environment, or usually study pressure is relatively large, there is no appropriate hobbies and interests, may cause children biting finger bad habits.
7-12 years old children biting fingers, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.