When patients have severe snoring symptoms, it may be due to excessive obesity. The excessive weight of patients may cause the entire upper airway to become narrow, which may lead to a significant increase in the patient’s respiratory resistance, resulting in more serious snoring symptoms during nighttime sleep, as well as the performance of continuous open-mouth breathing and intermittent breath-holding. Some patients may have serious inflammatory infections of the nasal cavity and sinuses, allergic disease factors, or polyps and papillomas in the nasal cavity, as well as excessive enlargement of the tonsils and adenoid hypertrophy, which may cause severe snoring symptoms and require further detailed examination for a clear diagnosis.