Shaykh Abdul-‘Azeez bin ‘Abdullaah bin Baaz (may Allaah shower His
mercy on him) said:
“Demanding for medical check-up [such as genotype test] before
marriage is not necessary because this may open the door of evil. The doctor may
err [in his judgement] and consequently cause problems to the lady or the man.
However, the man should ask about her. if she is apparently sound
and healthy, all praise is due to Allah. The same is applicable to the man. The
family of the lady should not hide her defects if she has any hidden ailment. Rather,
they are duty bound to make it known and not to deceive the man.
As for deliberately requesting for medical check-up from the
doctor, I do not know of any basis for this nor is it proper to do such because
this may cause a lot of problems. It may [also] lead to great evil and hinder
women from getting married based on the erring judgement of some doctors.”[1]
Elsewhere, the Shaykh was quoted as saying that demanding for
medical check-up before marriage negates having good thought about Allaah, and
the medical check-up may give incorrect results.[2]