Why did my TOS symptoms start now?

After years of having non-typical anatomy; how come the symtpoms of TOS start at any given point?

The following may be a reason why the symptoms have been triggered in those with  predisposing anatomy or regular anatomy:

  • Recent injury, Neck injury, first rib fracture, collar bone fracture.
  • Repeated movements, overhead activities in particular
  • Sports
  • Recent change in demands (posture or activity)
  • Puberty, growth spurts, change in body shape