<unk>  (literally metatarsal pain, colloquially known as stone bruise) is a general term used to refer to any painful foot condition affecting the metatarsal region of the foot (area just before the toes, commonly referred to as ball-of-the-foot). It is actually a common overuse injury that can affect the joints and bones of the metatarsals.<unk>  is most often localized to the  the first metatarsal head (the ball of the foot just behind the big toe).  There are two small sesamoid bones under the first metatarsal head.  The next most frequent site of metatarsal head pain is under the second metatarsal.  This can be due to either too short a first metatarsal bone or to "hypermobility of the first ray" (metatarsal bone + medial cuneiform bone behind it), both of which result in excessive pressure being transmitted into the second metatarsal head.<unk>  is the irritation and inflammation of joint capsule surrounding these metatarsal heads due to excessive pressure over prolonged periods of time. Patient complaints of pain in the joint itself with the feeling of a marble in the shoe or a bunched up sock.
Metatarsalgia
Plantar wart
Freckle
Plantar fasciitis
Wrist drop
Sprained ankle
Pedal edema
Palmar erythema