For joining the armed forces one has to be in perfect physical and medical shape and people who have flat feet etc are not normally accepted, i learned recently that there’s this thing called ‘knee knocking’ and the medical term is ‘knock knee’, and the people who have it aren’t usually accepted for military too. what is it? and whats theproblem with their joining the military? what problems can they have? cause ppl who have it are perfectly normal otherwise. so what’s with military service.
knock knee is when a person (male, im not sure for females) standing straight with his feet together, doesnt have ay gap between his knees and both knees touch each other. Normal thing is to have gap between both knees. Let’s also have a survey here to see how many have knocking knees and how many dont. we might end up doing some medical research on us beings from the 21st century 
any info guys? any orthopedics in here?
thanks