This document discusses several disorders of the pharynx, including acute and chronic pharyngitis, herpangina, keratosis pharyngitis, pharyngeal pouches, and Eagle's syndrome. Acute pharyngitis is usually viral but can be bacterial, while chronic pharyngitis can be catarrhal or hypertrophic. Pharyngeal pouches are herniations of hypopharyngeal mucosa through the cricopharyngeus muscle. Eagle's syndrome involves an elongated styloid process or calcified stylohyoid ligament that can cause pain on swallowing. Diagnosis and treatment options are provided for each condition.