Nasal polyps can cause headaches. The exact cause of nasal polyps is unknown, but they are generally due to prolonged chronic inflammation that leads to congestion, swelling, proliferation, and prolapse of the nasal turbinates' mucous membrane, resulting in the appearance of polyps. They are also often secondary to allergic rhinitis. Nasal polyps cause persistent nasal congestion, which progressively worsens, leading to persistent hypoxia in patients. This can cause symptoms such as headaches, dizziness, nausea, vomiting, and coughing. During examination, congested and swollen nasal mucosa can be found, and in the middle or general nasal passage, pale, abnormal, soft, painless neoplasms may be detected. In terms of treatment, nasal polyps require endoscopic nasal polypectomy and sinusotomy. After surgery, physical exercise and avoiding colds are necessary to prevent recurrence.