Plz ask him to go and visit a urologist,his examination is necessary in his case
There are a number of ways from which choice has to be made depending on situation
But that choice can only be made after proper assessment of the problem. I would suggest you visit my clinic for the detailed discussion
aoa .there are multiple causes of premature ejaculation like psychogenic
and pathogenic .
and second thing few female have small clitoris and some have less time
ao multiple causes
i suggest u some basic test and send me report i ll try to solve the
1. fasting lipid profile
2. uric acid
and send me all labs
do all test at morning time at 8 am regard.