The "signal hint" of the foot
Blue toenails: Generally speaking, circulatory disorders often occur in the body.
Light toenails: may be anemia.
Toe numbness: mostly the manifestation of cardiovascular disease.
Foot pain and numbness: under normal circumstances, there will be no abnormal feeling when touching your feet. If you feel sore, numb and painful when touching your feet, you may have some kind of disease. Pain is related to nervous system diseases; Numbness has skin disease or blood disease; Sour feeling is more common in trauma; Wood feeling may have inflammation; The feeling of cold is cold; The feeling of jumping is spasm; Swelling sensation is mostly edema and so on.