What causes discoloration of fingers to blue?
Patient: Our 15-yr-old granddaughter's fingers turn blue at different times for no apparent reason. No numbness, they just feel weak when it happens.  It's not when she's cold. What would cause such a thing? (It's not her feet...just fingers and part of her hands)We have asked the pediatrician and other doctors...even her sports therapist (she's a cheer-leader). Thanks Doctor: Hi, dearI have gone through your question. I can understand your concern. She may have cyanosis.  It may be due to malformations of some vessels or cardiac problems. You should consult physician for examination. If needed go for echo cardiogram. Then start treatment accordingly. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using health care magic. Wish you a very good health.