After several years of using masks, COVID-19 has also become endemic, and those who have recovered will experience symptoms of "Long COVID", such as extreme fatigue, shortness of breath, memory and concentration problems, changes in taste and smell, joint pain, muscle pain, The virus can also cause damage to the heart, kidneys, intestines, etc. of recovered patients. After being infected with the epidemic, the body deteriorates, but the problem can be found out through the physical examination, the sequelae can be prevented, and the health can be maintained.