Caseous tonsillitis is a common disease that does not limit the age of the patient. The disease is caused by many causes and favorable factors, which can cause local, neighboring and systemic infections that affect the patient's health.

Purulent tonsillitis is an acute or chronic inflammation of the tonsils caused by bacteria or viruses. The disease causes many dangerous complications such as tonsil abscess, peritonsillar inflammation, bronchitis, sinusitis, lateral pharyngeal abscess, nephritis, arthritis, carditis, and sepsis.