This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General obstetrics, Subject name: Gynaecology & Obstetrics
All of the following are true regarding after pains except 
Select and explain. 
A. Most common in multiparous females, B. Pain worsens when infant suckles, C. Decreases in intensity by 7th day, D. They become more pronounced as parity increases
C: Decreases in intensity by 7th day
Answer: C: Decreases in intensity by 7th day 
Explanation: After pain: It is infrequent, spasmodic pain felt in the lower abdomen after delivery for a variable period of 2-4 days. Presence of blood clots or bits of after bih leads to hypeonic contractions of the uterus in an attempt to expel them out. For more information, refer page no 176 of Dutta&;s textbook of obstetrics, 8th edition.