Yes, a thorough breast examination is performed, together with a
pelvic examination as part of a survey to find out the percentage
of students who are still VIRgo-INtacters. Some female students
apparantly did not expect the examination to be so erm.. thorough..
so they were understandably shocked when asked by the doctor to
'take out everything'.
I'm not kidding.
But to those who have gfs/planning to get a gf in NUS, don't
worry... no invasive
examination/tests were done.. meaning, don't blame the
doctor if you find her membrane broken. 
Whereas for the guys, it's just a quick auscultation of the chest
to exclude major respiratory disease.
(By the way, i think it is plain ridiculous for this forum to
censor the word 'brea st'... it's just a reference to a part of the
normal female anatomy. 
Not to mention the 'wait 5 min between the first 20 posts'
rule.)