Generally, yawning is a physiological manifestation and there is no need to worry too much about it. However, if yawning is frequent, there may be pathological causes, such as obstructive sleep apnoea syndrome, cerebrovascular disease, psychosomatic disorders, etc. If you yawn frequently, you should pay attention to closely observe whether there is any other physical discomfort or any significant decline in your ability to live and work, etc. Once you find a combination of uncomfortable symptoms, you need to be highly alert and go to the hospital as soon as possible.