Pneumonia due to Mycoplasma infection Mycoplasma pneumonia can present with a nocturnal cough. Mycoplasma infection is very common in the clinic, but the most common is the pneumonia caused by its infection, i.e. Mycoplasma pneumoniae. Mycoplasma pneumoniae pneumonia is usually evident in respiratory symptoms in 2 to 3 days, and the severe dry cough that occurs with mycoplasma infection can lead to a violent cough due to the high airway hyperreactivity at night when temperatures are low. Mycoplasma infection is mainly characterized by a dry cough, and repeated irritation can lead to a dry cough that lasts for a longer period of time, chest pain and blood in the sputum. If Mycoplasma pneumoniae causes a cough at night, it is recommended to go to the hospital and get regular treatment as soon as possible.