Why are my fingernails turning yellow?

Nails turn yellow for a few reasons. The first is a fungal nail infection, but your nails would be thick also. Painting your nails with a black polish can stain them yellow, but seen this is only on the one hand that is unlikely. Illnessess can cause yellow nails are, diabetes, can cause yellow nails. Abnormalities of the lymphatic system and lung disease can cause it also. Do you have any serious coughing or respritory symptoms also? There is also a syndrome called yellow nail syndrom. Check these out on the internet. If you are unwell see a Doctor.

do u smoke? that will do it.

Maybe your hand touch something yellow in your kitchen when you cooking?? My right hand always get that but its difficult to vanish.. But when someone ask me about my hand turn yellow I will tell them that.. Chef's hand always be like this..

i think u its vitamin Defficieny or it may be infection it depends upon ur Climatic conditions u are living i prefer take Erythromycin Tablets once in 3 weeks