why are the bottoms of my feet sensitive
Sole (foot) The soles of the feet are extremely sensitive to touch due to a high concentration of nerve endings, with as many as 200,000 per sole.[5] This makes them sensitive to surfaces that are walked on, ticklish and some people find them to be erogenous zones.[6]
Bouchard's nodes Bouchard's nodes are hard, bony outgrowths or gelatinous cysts on the proximal interphalangeal joints (the middle joints of fingers or toes). They are seen in osteoarthritis, where they are caused by formation of calcific spurs of the articular (joint) cartilage. Much less commonly, they may be seen in rheumatoid arthritis, where nodes are caused by antibody deposition to the synovium.