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Pain is a general term that describes uncomfortable sensations in the body, ranging from annoying to debilitating. Pain stems from activation of the nervous system and is highly subjective.
Swelling occurs whenever the organs, skin, or other parts of your body enlarge. It is typically the result of inflammation or a buildup of fluid.
Many conditions can cause your skin to become bluish in tint. For example, bruises and varicose veins can appear blue in color. Poor circulation or inadequate oxygen levels in your blood stream can also cause your skin to turn bluish. This skin di...