Head and neck cancers are ranked sixth among all cancers globally with reported new patients (630,000) identified per year. Males are more prone to head and neck cancers than females across the Pakistani population. Objective: In the current project, the goal was to determine the frequency of acute side effects in terms of dysphagia during and immediately post-irradiation period in patients receiving concurrent 3dimensional radiation-therapy at Results: In the present study, there was a gradual

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... increase in grades of dysphagia among all patients after treatments till 7 weeks. After one month of post-treatment, all grades of dysphagia improved among all patients. Conclusion: Acute side effects like dysphagia occurred among all patients receiving 3-D Radiationtherapy with overall good the treatment response. No death was reported during the current study. Although, we concluded 3-D Radiation-therapy has a high incidence of treatment-related toxicities.