The causes of white nasal discharge from the nose include acute rhinitis, chronic simple rhinitis, allergic rhinitis and so on. 1. Acute rhinitis: common rhinovirus, adenovirus, coronavirus and so on can cause the disease, the main symptoms in the early stage are nasal itching, burning sensation, irritation and so on, followed by sneezing, headache, increased nasal discharge. The character of nasal mucus is watery and white at the beginning, and then it becomes mucopurulent. 2. Chronic simple rhinitis: it is a kind of chronic inflammation of nasal cavity with swelling of nasal mucosa and increased secretion as the main symptom. Nasal secretion is mainly mucous membrane gland secretion, which is mucous due to the high content of mucin, and without secondary infection, it is white and sticky. 3. Allergic rhinitis: allergic individuals exposed to mites, dust, pollen and other allergens, nasal inflammation leads to increased secretions, white nasal discharge can occur. White nasal discharge from the nose, such as persistent unrelieved, it is recommended to consult a doctor in a timely manner and follow the doctor’s instructions to standardize the treatment.