Mycoplasma pneumonia is a pneumonia caused by Mycoplasma pneumoniae infection, and its typical symptoms are characterized by: 1. symptoms usually start 1 week after exposure to Mycoplasma pneumoniae and peak in 2-4 weeks; 2. fatigue and myalgia: patients may have symptoms such as fatigue and peripheral myalgia at the beginning, which may resolve on their own after 2-3 days; 3. fever: generally moderate fever, which may last for 2-3 weeks, and children and frail people may develop High fever; 4. Cough: mostly persistent and severe dry cough, may be accompanied by thick sputum, headache, sore throat, chest pain, etc.