This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fetal Skull and Maternal Pelvis, Subject name: Gynaecology & Obstetrics
All are true regarding caput succendaneum is except- 
Select and explain. 
A. Present at birth, B. Disappears spontaneously within 24 hours of birth, C. Not limited by suture line, D. Always unilateral
D: Always unilateral
Answer: D: Always unilateral 
Explanation: Ans. is 'd' i.e., Always Unilateral Caput succendaneumo Formation of swelling due to stagnation of fluid in the layers of the scalp beneath the girdle of contacto Present at birth.o Disappears spontaneously within 24 hours after birtho Not limited by suture line.o Swelling may extend to both sides of scalp (bilateral).