That's because certain conditions such as Heart disease, liver or kidney problems, and nutritional deficiencies can show up in our nails. Since you've noticed this change in your nail color, I encourage you to talk with your doctor, who can give you the best advice for your specific situation. Based on the information I have from your question, I'll try to provide some possibilities that can cause dark coloring of the fingernails.
Darkened toenails typically mean that a collection of blood (or a 'hematoma') has gathered underneath the nail. A hematoma increases the pressure in a given area, which causes intense pain. You see darkened toenails more-so in athletes and those that walk barefoot, but anyone is susceptible to darkened toenails. Below are the causes of a darkened toenail:
If the darkened portion covers more than 25 percent of the nail, then you should seek medical attention. You can ask a local doctor to recommend a podiatrist (a doctor that specializes in feet, ankles, and the lower extremities).
Do not worry too much. If you feel you want to consult a medical professional, then you should. If you don't feel any pain, then you don't need to consult a doctor or another medical professional immediately (unless the color consumes more than 25 percent of your nail).
I hope this helps!
Because of dehydration, not drinking enough water
Unless you painted them or brusied them, they should be clear, thus the same color as your skin.
A disorder in the pigment of your skin or the sun has increased your melanin levels or you have and injection of sun tan in a needle :-$
See a doctor
If you smoke too long it will cause your nails to start turning black. Then they will eventually rot and fall off.
All breeds may have black nails. Usually, dogs get black nails when they are not take care of properly.
you buy some black nail polish and paint your nails with it
cause its blue if not what do you mean?
Black or nude nails.
No
your nails get tow long and go all black
He painted the nails on his left hand.
yes sure you can :)
because we have melanin in our body so our nails are black
A budgie may have black nails because of the tone of their feet themselves. If a budgie has darker, grey-toned feet, and black nails, it should be fine. However, if a budgie haspink feet and black nails, it could mean the budgie has an infection or a dietary problem. Call a vet if you think there might be something wrong with your budgie.
He sometimes paints them black, and other colours too, but the nails themselves are the regular clear, translucent nail color ;)