Splinter hemorraghe is caused by voids in the nail cell production which fill up with blood from the nail bed. They do not run the entire length of the nail plate, but will grow forward with the nail plate until they grow off with the free edge.
Melanonychia are vertical pigmented bands, often described as nail 'moles', which usually form in the nail matrix. Seek a physicians care should you suddenly see this change in the nail plate. It could signify a malignant melanoma or lesion. Dark streaks may be a normal occurrence in dark-skinned individuals, and are fairly common.
Longitudinal Brown Lines
Longitudinal brown lines form because of increased melanin produced by nail matrix melanocytes. They are associated with:
Addison's disease;
Nevus at the nail base;
Breast cancer;
Melanoma (check for periungal pigmentation); and
Trauma.
it's nothing ! it's natural. most people have lines in their nails. if you are very concerned becauase they don't look natural, go to a doctor, I'm sure they'll help you
Black lines in fingernails could indicate a serious health problem. One cause of black lines in fingernails is Melanoma. A doctor will be able to diagnose the problem.
I don’t kniw
maybe if you leave them on to long, but since nails are dead skin cells you will most likely get vertical lines anyways. (Nail polish can hide the vertical lines too)
The deep *vertical* lines in your fingernails are genetic. If you have *horizontal* ridges in your nails, you should see a doctor.
Nails (and finger nails) have volume.
Finger nails are made of a protein called keratin.
No one invented finger nails.
Actually, finger nails contain protein (called "keratin").
no
By system, you mean category.. I'm not sure if you mean finger nails or like tool nails, so I'll give you both. Finger nails: Body parts Tool nails: Hardware
Healthy nails are usually a consistent pink color. They are hard and moist enough that they do not break or split too easily. The edges of your nails should stop while still on the finger, and the nails should be firmly attached to your nail beds. Healthy nails are smooth, and the texture shouldn't include things like Beau's lines, which are deep grooved lines from side to side of the fingernail. Beau's lines are a sign of infection or Kawasaki disease. Nails should also run straight out of the finger tip, as opposed to curving out (koilonychias: a sign of anemia).
Finger nails (and toe nails) are made of keratin.
For finger nails :no,the other nails are iron , copper, etc but not plastic
Me? i bite my finger nails.