Tonsillectomy is one of the commonest otolaryngological procedures performed .Multiple reports have demonstrated the safety of ambulatory (outpatient) pediatric Tonsillectomy, however Post-tonsillectomy hemorrhage remains the most serious complication of tonsillectomy. In this work, we analyzed different parameters including patient¿s age, gender, type of surgery ¿Tonsillectomy or Adenotonsillectomy¿, technique ¿Cold dissection or Bipolar¿, evidence of tonsillar bed infection and pre-operative hemoglobin level in two groups of patients indicated for tonsillectomy. One group of 80 patients didn¿t suffer from post tonsillectomy bleeding as a control group; the other of 20 patients having secondary post-tonsillectomy bleeding.