Left-handed people are clinically known as left-handed. If a left-handed person writes with his or her left hand, there is no need to correct it without special requirements, such as occupational requirements for work or the requirements of traditional habits, and it will not cause any significant harm to human health. Most people in the population are right-handed and use their right hand for eating, writing, working, etc. Left-handed people are still relatively few, and many facilities and tools are designed in favor of right-handed people. It depends on the patient’s understanding of the inconvenience caused by left-handed people when working or living. There is no need to worry or be overly anxious about which right or left hand is dominant, and there is no need for mandatory correction.