Sole of foot - Planta pedis Causes: - Overwork or overuse of the ball of the foot (hike, long standing) - wrong footwear - very overweight - Disease of the metatarsophalangeal joints (Inflammation, wear and tear, or fractures) - gout (deposits of uric acid crystals) or rheumatic disease - bone tumor
You can find an overview of all Dr-Gumpert images at: medical illustrations