چکیده (انگلیسی):

Introduction
Tonsillectomy is a common surgical procedure done by otolaryngologists. Tonsillectomy is a relatively simple procedure. The concept of implementing it as a day case operation has become increasingly popular.
Material and Methods
This is a cross sectional study done in Alahsa city, eastern province, Saudi Arabia during the period from January 2014 to March 2015,This study reported the postoperative hemorrhage after Bipolar diathermy and Cold dissection surgical techniques to evaluate the incidence of the hemorrhage and to identify the possible risk factors associated with its occurrence.
Results
Postoperative bleeding occurred in 45 (3.6%) out of 1232 patients. Post-tonsillectomy hemorrhage according to operation technique was significantly higher among patients who underwent bipolar diathermy than cold dissection technique (p < 0.05).
Conclusion
Bleeding after operation by bipolar diathermy technique was occurring more frequently within the first five days. Hemoglobin level was significantly decreased in post-tonsillectomy hemorrhage.