This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Medical, surgical and gynaecological illness complicating pregnancy, Subject name: Gynaecology & Obstetrics
All are used for contraception in sickle cell anaemia except 
Select and explain. 
A. Oral Pill, B. IUCD, C. Progestin only pill, D. Progesterone Impants
A: Oral Pill
Answer: A: Oral Pill 
Explanation: Combined oestrogen progesterone should be avoided for contraception Intrauterine devices are not preferred due to risk of infection Progesterone only contraception is ideal. Prgesterone is known to prevent sickle cell crisis Reference: Textbook of Obstetrics; Sheila Balakrishnan; 2nd Edition; Page no: 291