Scraping the tongue on the head of the tongue is generally not good. Scraping the tongue may cause irritation to the tongue, leading to necrosis of the tongue mucosa, as well as the possibility of tongue damage and invasion of bacterial pathogens. If there are no obvious symptoms of tongue discomfort, it is best not to scrape the tongue. Usually must pay attention to the best not to scrape the tongue head of the tongue, if this action may lead to abnormal sensation, and long-term operation may also cause traumatic stimulation of the tongue, resulting in numbness and other symptoms of the tongue. Usually must do a good job of oral care health care work, to avoid being stimulated by foreign objects, but also need to maintain good hygiene habits.