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
A woman in second trimester was found to have over distended uterus. Common causes include: 
Select and explain. 
A. Wrong date, B. Hydramnios, C. Distended bladder and Twins both, D. All
D: All
Answer: D: All 
Explanation: Ans. is a, b, c and d i.e. Wrong date; Hydramnios; Distended bladder; Twins; and Fibromyoma In women with a uterus that appears large for gestational age, the following possiblities are considered: Multiple fetuses Elevation of the uterus by a distended bladder Inaccurate menstrual history Hydramnios Hydatidiform mole Uterine myomas A closely attached adnexal mass Fetal macrosomia (late in pregnancy).