What causes fingernails to turn yellow?

It can also mean that your nails have been stained by a product like nail polish, or that you're having an allergic reaction. read more

Other, rare causes of discolored nails include the"yellow nail syndrome," an inherited condition that results in slow-growing, yellowing, discolored nails and is associated with lymphedema (swelling of tissues due to the accumulation of fluid) and lung diseases. read more

A yellow fingernail is sometimes caused by an underlying medical condition, but smoking, regular use of nail polish (dye), and some medications (including: tetracycline & 5-fluorouracil) can also cause a yellow discoloration of the nails. Thus yellow fingernails aren't uncommon, but aren't in fashion either. read more

Another treatment for yellow toenails or fingernails is to use toothpaste with a whitening agent. Another treatment for yellow toenails or fingernails is to use toothpaste with a whitening agent, such as hydrogen peroxide or baking soda. The same ingredients that help whiten your teeth can work for mild yellow stains on your nails, too. read more