The sum of our experience in dealing with pyogenic parotitis has lead to three practical conclusions:
1. Acute suppurative parotitis is, in the great majority of cases, an ascending infection from the duct related to decreased salivary flow, fever and depressed general condition.
2. Early adequate liberation and drainage of the parotid gland is a safe and useful procedure in all cases of severe septic parotitis not plainly terminal, and in some cases it may be life saving.
3. Meatotomy of the duct is useful in certain cases of parotitis associated with obstruction not due to stones.
Both clinical observation and a review of this series of cases suggest certain tentative deductions as to etiology, clinical course and treatment. The series is of itself too small to form a basis for broad deductions that would controvert generally accepted ideas. These observations are presented as a further contribution to the subject.