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
Common causes of infertility are:a) Chlamydiab) Gonorroheac) Mycoplasmad) Pneumococcus 
Select and explain. 
A. ab, B. bc, C. acd, D. abc
D: abc
Answer: D: abc 
Explanation: PID resulting in salpingitis is an important cause of infertility.
Infertility from PID can occur due to following organisms:
a. Chlamydia 
b. Gonorrhea 
c. Tuberculosis 
d. Mycoplasma (Specifically ureoplasma) 
Certain Infections cause Intrauterine synechiae or asherman syndrome thus leading to infertility like:
e. Schistosoma