
Dr Lau Chee Chong
Medical Director & Senior Consultant ENT Surgeon
MBBS (Singapore), FRCS (Edinburgh), FAMS (Singapore)

Snoring is not always caused by problems in the throat alone. In some individuals, chronic nasal congestion and sinus-related blockage can disrupt airflow during sleep, leading to vibration of the surrounding airway tissues that causes snoring.
Understanding how nasal and sinus conditions contribute to snoring may help patients identify treatment options that may improve airflow and sleep quality without necessarily requiring invasive throat surgery.
Normal breathing during sleep usually occurs through the nose, where air flows smoothly into the airway. However, when the nasal passages become congested or blocked, airflow may become restricted.
When airflow through the nose becomes limited, many individuals begin breathing through the mouth instead. This can increase vibration of the soft tissues in the upper airway, producing snoring.
For some people, snoring may mainly occur during periods of congestion caused by allergies, infections or inflammation affecting the nasal passages. Because snoring may sometimes originate from the nose rather than the throat, treating the underlying cause of congestion may help reduce snoring without requiring invasive throat surgery.
Several nasal and sinus conditions may contribute to chronic congestion that worsens snoring during sleep.
Sinusitis refers to inflammation or infection of the sinus cavities, which can cause facial pressure, mucus buildup and persistent nasal congestion. Chronic sinus symptoms may make nasal breathing more difficult at night.
Rhinitis, including allergic and non-allergic rhinitis, can cause swelling inside the nasal passages due to allergies, irritants or environmental triggers. Symptoms such as sneezing, congestion and a blocked nose may become more noticeable at night.
A deviated nasal septum occurs when the wall separating the nasal passages is uneven or displaced. This may contribute to long-term nasal obstruction on one or both sides of the nose.
Enlarged turbinates or nasal polyps may further narrow the nasal passages and contribute to persistent congestion that does not always improve with medication alone.
Because these conditions can affect breathing differently, ENT assessment may help identify the underlying cause of congestion-related snoring and determine appropriate treatment options.
In some individuals, improving airflow through the nose may help reduce snoring caused by chronic congestion. Because not all snoring originates from the throat, identifying and treating the underlying nasal or sinus condition may sometimes reduce the need for more invasive throat-based procedures.
Treatment usually depends on the cause and severity of nasal obstruction. In mild cases, symptoms may improve with non-surgical treatment such as:
When congestion is caused by structural blockage or persistent sinus disease, further treatment may sometimes be recommended. Procedures such as septoplasty, turbinate reduction or sinus surgery may help improve airflow through the nasal passages and support more comfortable breathing at night.
Occasional snoring during periods of congestion or illness may not always indicate a serious problem. However, persistent snoring or ongoing nasal blockage should be medically evaluated, especially if symptoms begin affecting sleep quality or daily functioning.
Medical assessment may be recommended if snoring is associated with:
ENT evaluation may involve examination of the nasal passages and upper airway to identify possible structural blockage, inflammation or sinus-related conditions contributing to snoring. In selected cases, sleep studies may also be recommended to assess for underlying sleep-disordered breathing.

Snoring is not always caused by problems in the throat and chronic nasal congestion may sometimes play a significant role in disrupting airflow during sleep. Identifying and treating underlying sinus or nasal conditions may help improve breathing, sleep quality and snoring symptoms without requiring more invasive throat procedures.
Ear Nose & Throat Centre CC Lau is an ENT clinic in Singapore that provides tailored assessment and management for individuals experiencing snoring linked to chronic nasal blockage, sinus inflammation and other sleep-related breathing concerns. Patients are attended to by Dr Lau Chee Chong, who has more than 30 years of experience diagnosing and managing nasal, sinus and airway disorders using both medical and surgical treatment approaches. If ongoing congestion or night-time snoring is affecting your sleep or daily well-being, arrange a consultation with us to explore appropriate diagnostic and treatment options.
Nasal strips may help temporarily improve airflow through the nose in some individuals with mild congestion or nasal narrowing. However, they may not fully address underlying sinus or structural nasal conditions.
Sinus or nasal surgery may help improve snoring if chronic congestion or structural blockage is contributing to airflow restriction. However, snoring can have multiple causes, so outcomes may vary between individuals.
Yes. Chronic nasal congestion from allergies, enlarged adenoids or sinus problems may contribute to snoring in children and should be medically evaluated if symptoms persist.

Medical Director & Senior Consultant
Dr Lau Chee Chong is an experienced ear, nose, and throat (ENT) doctor at Mount Elizabeth Centre, treating both adults and children. With over 25 years of specialist experience, he holds surgical and visiting rights at all private hospitals in Singapore.
Dr Lau's practice covers the full spectrum of ENT, head, and neck care—including diagnostic, medical, and surgical management. He has a particular interest and expertise in treating snoring, sleep apnea, and other sleep-related breathing disorders in both adults and children.