Prevalence, patterns, and impact of myofascial pain in patients with head and neck cancer after cancer treatment - a single-center cross-sectional study in India.

Purpose: Head and neck cancer is the seventh most prevalent cancer, with over 660,000 new cases and 325,000 annual fatalities, accounting for 30% of all cancer cases. Chronic cancer-related pain affects 15-75% of patients, with myofascial pain being especially common in those with head and neck cancers, ranging from 11.9 to 44.