Does a cyst under the mucosa of the left maxillary sinus necessarily require surgery?

In general, whether surgery is necessary for a cyst found beneath the mucosa of the left maxillary sinus depends on the specific characteristics of the cyst. If the cyst is small and asymptomatic, surgery may not be required; however, if the cyst is large or causing symptoms such as facial pressure, pain, or nasal congestion, surgical treatment is usually recommended. If any discomfort occurs, timely medical consultation is advised. The detailed analysis is as follows:

When the cyst beneath the mucosa of the left maxillary sinus is small, it may not significantly compress or affect surrounding tissues, and patients may remain asymptomatic. In such cases, immediate surgical intervention may not be necessary. Instead, doctors may opt for observation and regular follow-up imaging to monitor changes in the cyst's size and determine further management accordingly.

As the cyst grows larger, it may compress adjacent bone, nerves, or blood vessels, leading to symptoms such as facial fullness or pain, nasal obstruction, and headaches. Additionally, larger cysts carry an increased risk of secondary infection, which can further impair the patient’s quality of life. In these situations, surgical treatment is typically indicated, as surgery can completely remove the cyst, relieve compression on surrounding structures, and restore normal physiological function.

In daily life, maintaining healthy habits—such as avoiding forceful nose-blowing and keeping the nasal passages clean—can help prevent or reduce the occurrence of maxillary sinus cysts and other nasal conditions.