Feel sore bones for the following reasons: First, lactic acid accumulation: Consider lactic acid accumulation caused after strenuous exercise. When the amount of exercise is too much, lactic acid in the muscles and joints will increase in production, so you will feel discomfort such as soreness and pain in the bones and muscles of the whole body. Second, high fever: When you have a cold or fever, your body’s basal metabolic rate will increase, and glycolysis will increase and speed up, so lactic acid will accumulate in the joints and bones, which will manifest as soreness and pain in the muscles and joints of the whole body. Third, degenerative osteoarthritis: often manifested in weight-bearing joint soreness and pain, especially when going up and down stairs, hiking and other weight-bearing exercises, joint pain will be aggravated, and after rest, joint soreness and pain will be relieved.