Frequent sinus infections are not typically a direct sign of paranasal sinus cancer. Sinus infections, also known as sinusitis, are usually caused by viral or bacterial infections, allergies, or other non-cancerous factors. However, persistent or recurrent sinus infections can sometimes lead to chronic inflammation, and in rare cases, chronic inflammation may be associated with an increased risk of certain types of cancer, including sinus cancer.

Paranasal sinus cancer is a rare form of cancer that can develop in the nasal cavity or paranasal sinuses, which are air-filled spaces around the nose. The symptoms of paranasal sinus cancer can include persistent nasal congestion, sinus pain, headaches, difficulty breathing through the nose, and changes in vision or double vision. These symptoms are more often related to the growth of tumors and compression of nearby structures.

If you are experiencing frequent or persistent sinus infections or any concerning symptoms, it is important to consult with a healthcare professional. They can evaluate your symptoms, perform necessary tests, and determine the underlying cause. While sinus infections are usually not associated with cancer, it's essential to rule out other potential issues and receive appropriate medical care.