Head & Neck Cancer, from the CureRays guide library.

Head and neck cancers arise in the mouth, throat, voice box, and related areas; many — especially HPV-related throat cancers — are very curable.

What it is.

Head and neck cancer is a group of cancers that start in the lining of the mouth, throat (pharynx), voice box (larynx), sinuses, or salivary glands. Most are squamous cell carcinomas. The main causes are tobacco and alcohol, and increasingly the human papillomavirus (HPV), which causes many throat (oropharyngeal) cancers. HPV-related cancers tend to respond especially well to treatment. Because this region controls speaking, swallowing, and breathing, care focuses on curing the cancer while preserving these vital functions.

How radiation treats it.

Radiation uses focused, high-energy x-rays to damage the DNA of cancer cells so they can no longer divide. Healthy cells repair this damage better than cancer cells, so daily fractionated treatment clears the cancer while normal tissue recovers. In the head and neck, intensity-modulated radiation carefully steers dose away from the salivary glands and swallowing muscles to protect speech, taste, and the ability to eat. Side effects such as a sore throat, dry mouth, and skin irritation build during treatment and largely improve afterward, supported by your care team and dietitian.

The ways we can treat it.

Intensity-modulated radiation therapy (IMRT). Sculpts the dose around tumors while sparing the salivary glands, jaw, and swallowing muscles — greatly reducing dry mouth and other long-term side effects.

Image-guided radiation (IGRT). Daily imaging confirms the target's exact position before each treatment, allowing tight, accurate margins.

Concurrent chemoradiation. Chemotherapy makes cancer cells more sensitive to radiation; the two are timed together for locally advanced disease to maximize cure.

Questions we hear often.

Will I be able to eat and speak normally? Preserving swallowing and speech is a top priority. Modern IMRT protects key structures, and your team includes speech and swallowing therapists and a dietitian to support you through and after treatment.

Why does HPV status matter? HPV-positive throat cancers respond especially well to treatment and have a better outlook, which is why they have their own staging system and are an active focus of research.

How long is treatment? Radiation is usually given daily over about 6-7 weeks, often with chemotherapy for advanced disease. Early cancers may need radiation alone.

This guide is informational only. It is not medical advice — please confirm anything here with your care team.