Overview
Every sinus operation has potential complications, but the relevant risks depend on the disease, anatomy, procedure extent, prior surgery, and patient health. This guide supports, and does not replace, informed consent by explaining common temporary effects, less common complications, risk-reduction steps, and the exact symptoms that need immediate help.
What this guide should clarify
This guide should help you understand a few key questions:
- What is expected, what varies by case, and what should be confirmed with the treating team
- Which practical steps improve preparation, follow-up, communication, and adherence
- Which symptoms are routine, which merit a same-day call, and which require emergency care

Have questions about risks and complications of sinus surgery? The next step is a quiet, unhurried conversation.
Evaluation and treatment pathway
- Confirm which operation, diagnosis, and individualized instructions apply.
- The consent discussion is procedure-specific and includes your imaging, the planned extent, prior operations, medications, bleeding risk, comorbidities, alternatives, and the consequences of no treatment.
- Risk reduction includes correct diagnosis and planning, medication review, appropriate imaging and navigation when indicated, careful technique, clear postoperative instructions, and timely follow-up. No checklist eliminates risk.
- A written timeline covers medications, activity, rinses or wound care, appointments, and return-to-work planning.
- Escalate promptly when symptoms cross the same-day or emergency thresholds listed below.

Common or expected issues
Most patients have some short-term, expected effects after sinus surgery, including:
- Temporary congestion and pressure
- Mild bleeding or blood-tinged drainage
- Crusting and the need for debridement
- Temporary changes in smell
- Fatigue
- A continued need for medical treatment
These generally improve over the early weeks as healing progresses, and saline rinses and follow-up visits support recovery.
Less common but important complications
Uncommon but important complications can occur and are part of the consent discussion:
- Significant bleeding
- Infection
- Scar tissue or re-narrowing of a drainage pathway
- Persistent or recurrent disease
- Cerebrospinal fluid leak and meningitis
- Eye injury, double vision, or, rarely, vision loss
- Major vascular or neurologic injury
- Septal perforation or structural change when combined procedures are performed
Individual risk depends on anatomy, prior surgery, disease extent, and medical conditions.
How risk is discussed and assessed
Risk discussion begins before surgery. The surgeon reviews CT anatomy, medications, bleeding risk, prior operations, and the relationship of the disease to the eye socket and skull base.
Image guidance may be used in selected cases to aid orientation, but it does not eliminate risk or replace surgical judgment. The consent conversation also explains how follow-up, irrigation, and early contact for concerns help reduce avoidable problems.
Measures that reduce risk
Several measures help reduce avoidable problems:
- An accurate diagnosis and appropriate indication for surgery
- Detailed imaging review
- Management of medications and bleeding risk
- Image guidance when indicated
- Tissue-preserving technique
- Clear discharge instructions
- Timely postoperative care
Numerical complication rates are not published here because meaningful rates require validated data and a clearly defined population. The final informed-consent discussion always occurs directly with the surgeon.
What to bring to your consultation
Bring or securely transfer the records that can change this decision:
- Imaging files and reports
- Endoscopy or operative findings
- Pathology results
- Laboratory results
- Prior treatment notes
- A current medication list
- The specific question you want answered
Having these available helps the team review the diagnosis and the available options together.
When to seek urgent care
Major bleeding, vision loss or double vision, severe eye pain, clear continuous drainage, severe escalating headache, fever with neck stiffness, confusion, weakness, seizure, chest pain, or breathing difficulty requires emergency evaluation.
An online form or routine appointment request is not an emergency service. For emergency symptoms, use emergency services rather than the routine form.
Medical review
This page is a patient-education resource reviewed by the responsible Norelle Health clinician before publication. It does not replace an in-person evaluation or the informed-consent discussion with your surgeon. If symptoms are severe or rapidly worsening, seek immediate medical care.
Clinical reviewers

Dr. Adrian Ong
MD
Board-Certified Facial Plastic & Reconstructive and Head & Neck Surgeon
Dr. Adrian Ong is a board-certified surgeon who practices exclusively on the face, head, and neck, with expertise spanning rhinoplasty, sinus surgery, facial trauma, reconstruction, and sleep surgery.
- Functional and aesthetic rhinoplasty (including revision)
- Sinus surgery and complex revision sinus surgery
- Facial trauma and nasal fractures
- Head and neck cancer surgery and microvascular reconstruction
Also caring for this area
Not sure who to see? Our patient coordination team can help match you with the right specialist.
(212) 444-8006Frequently Asked Questions
This guide organizes expected postoperative effects and potential complications of endoscopic sinus surgery, including bleeding, infection, scar or recurrent blockage, smell changes, orbital injury, and cerebrospinal-fluid leak.
The consent discussion is procedure-specific and includes your imaging, the planned extent, prior operations, medications, bleeding risk, comorbidities, alternatives, and the consequences of no treatment.
Risk reduction includes correct diagnosis and planning, medication review, appropriate imaging and navigation when indicated, careful technique, clear postoperative instructions, and timely follow-up. No checklist eliminates risk.
Major bleeding, vision loss or double vision, severe eye pain, clear continuous drainage, severe escalating headache, fever with neck stiffness, confusion, weakness, seizure, chest pain, or breathing difficulty requires emergency evaluation.
Clinical References
These independent resources from medical and professional organizations offer further reading. They are provided for general education and do not replace a consultation with a clinician.
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