Too much exposure to moisture may lead to hands and feet peeling. Someone's hands and feet may also start peeling off if he has a fungal infection. Other closely related fungal infections of the feet include the athlete's foot.
You can use your fingernails to break the skin or use a plastic tool to do it. Then peel back with your fingers.
dirt
smoking
The deep *vertical* lines in your fingernails are genetic. If you have *horizontal* ridges in your nails, you should see a doctor.
picking warts on your bum and casual worms.
Go to the doctor. You could have a STD.
Keratin... it's a natural substance that makes the nail harden.
Fingernails are normal in the human body. Please be more specific in your question.
Moisture under hairline cracks.
spray to close..dries to quick.paint to thick
the calcium oxalate present in yam peel is thought to be responsible for causing the itching sensation when it contacts the skin
amonia causes iches, your skin/flesh will peel if you drink it