This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
Likely size of uterus at 8 weeks post paum is 
Select and explain. 
A. 100 gm, B. 500 gm, C. 700 gm, D. 900 gm
A: 100 gm
Answer: A: 100 gm 
Explanation: Ans. is a i.e. 100 gm Weight of uterus : Immediately after delivery -- 1000 gm. At the end of 1 week -- 500 gm. At the end of 2 weeks -- 300 gm. At the end of 6 weeks it weighs -- 60 - 100 gm (Pre-pregnant state). Also Know : Immediately following delivery, the fundus is just below the umbilicus (13.5 cms above the symphysis pubis/ 20 weeks gestational age size.)deg Involution of the uterus After 24 hours of delivery, height of uterus decreases by 1.25 cm/day.deg Uterus is a pelvic organ.deg by the end of 2 weeks. Uterus returns almost to its normal size (pre pregnant size) by the end of 6 weeks. The process by which the post paum uterus returns to its pre pregnant state is called as Involution. Involution is achieved by decrease in the size of muscle fibres.deg (and not in the number)deg