<prompt> All of the following are known causes of recurrent abortion except:TORCH infectionSLERhin compatibilitySyphilis  <response>: Ans. is a, i.e TORCH infectionRef. Pre test Obstetrics and Gynaecology 11e, p 68 Question 77As discussed in previous question TORCH infection do not lead to recurrent abortion.SLE is an established cause for recurrent abortionSLE is associated with antiphospholipid syndrome anti-cardiolipin antibodies and is known to cause recurrent abortions.RH incompatibility is a known cause for spontaneous abortion and may lead to recurrent abortions if it remains unrecognized.Syphilis as discussed in the text can lead to recurrent abortion. 