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: Anatomy
Chadwick sign is seen in : 
Select and explain. 
A. Cervix, B. Vagina, C. Uterus, D. Ovary
B: Vagina
Answer: B: Vagina 
Explanation: During pregnancy, due to increased vascularity and hyperemia there is bluish discoloration of vagina called as Chadwick sign. Ref: Datta Obs 9e pg 42.