Because PCS symptoms are so varied and many can be associated with a large number of other conditions, doubt exists about whether the term "syndrome" is appropriate for the constellation of symptoms found after concussion. The fact that the persistence of one symptom is not necessarily linked to that of another has similarly led to doubt about whether "syndrome" is the appropriate term.A longstanding controversy surrounding PCS concerns the nature of its etiology – that is, the cause behind it – and the degree to which psychological factors and organic factors involving brain dysfunction are responsible. The debate has been referred to as psychogenesis versus physiogenesis (psychogenesis referring to a psychological origin for the condition, physiogenesis to a physical one). See also
Daniel Amen, post-concussion expert for the National Football League

References


== External links ==
Boys often need to undergo an orchiopexy to move the testes to their proper place in the scrotum. References
External links
The Journal of Bone & Joint Surgery | Article