<prompt> A 34 years old lady with 4 children, after 5th normal vaginal delivery, excessive bleeding occurs after placenta is removed. What is the cause for this?EstrogenProgesteroneFSH and LHPPH  <response>: In above case, excessive bleeding after placenta removal is due to PPH postpaum hemorrhage due to uterine atonicity Causes of PPH: 4 Ts 1. Poor tone 2. Trauma 3. Thrombin deficiency 4. Tissues retained 