Pain on the ball of the foot is common and can be caused by a number of different conditions. There are many different structures in the ball of the foot which any one of them can be affected leading to so many different potential problems.

Curated Resources:
http://www.foothealthfriday.com/pain-on-the-ball-of-the-foot/ (Foot Health Friday)
http://www.foot-health-forum.com/forum/showthread.php?t=118 (Foot health Forum)
http://www.foot-health-forum.com/forum/showthread.php?t=79 (Foot health Forum)
http://www.foot-info.com/ball_of_foot_pain.php (Foot Info)
http://podiapaedia.org/wiki/orthopaedics/ball-of-foot-pain/ (PodiaPaedia)

HungryFEED can't get feed. Don't be mad at HungryFEED. SimplePie reported: A feed could not be found at http://academic.research.microsoft.com/Rss?query=Ball%20of%20Foot%20Pain&searchtype=0&SearchDomain=6. A feed with an invalid mime type may fall victim to this error, or SimplePie was unable to auto-discover it.. Use force_feed() if you are certain this URL is a real feed.