 [ Symptoms ] what does it mean when your toe starts swelling and turning white underneath with itching and pain [ Disease ] sorry to hear you are experiencing this it must be uncomfortable it is really impossible to say what could be causing this without a physical examination your best bet is to make an appointment with your primary care provider and let him or her take a look at your toe because the range of possible causes is so wide and depends a lot on your physical history medications and so on only your health care provider can provide a diagnosis i hope you are able to get this resolved quickly