Hello
Thank you for getting in touch with us. As I see, the skin on the top of your hands turned blue a couple a weeks ago. It would have been better for us if you would have told us about the tests your Doctor has recommended you to go in for. Is ANA in the list?
Lupus and
Scleroderma are autoimmune diseases seen commonly seen in women. ANA is positive in many of these females. Lupus and Scleroderma are diseases which affect many organs in the body. As you have just experienced skin changes so far, your Doctor might prefer to observe you for sometime before he goes in for some additional tests. Hope this helps
Regards
Dr. Gagandeep Dhillon