How do nails grow out without pain?

How do your nails grow out without tearing your skin beneath it because nails are attached to the skin, it doesn't just grow from the top because I smashed my thumb and the blood is starting to grow out.How do nails grow out without pain?
i just think that it's such a slow process that we don't really feel it.





plus, our skin is constantly regenerating and we don't notice that, either......How do nails grow out without pain?
i found this online does it answer your question?





Nails do not breathe in the same way as skin, taking in oxygen and emitting carbon dioxide; however, they do need to respire. This means that the nail bed receives its oxygen from the blood supply. Oils and toxins are emitted through the nail plate, thus keeping nails healthy and allowing them to function normally. Nails begin to grow at the germination of the epidermis. Fingernails are generally known as appendages of the skin. The main component of nails contains no nerves. Nails are impervious to feeling, and can be cut without pain. Nails serves to protect the nail plate and their condition will always reflect the general health of an individual.





As nails grow, they move on the channel called the nail groove. The plate, which is colourless, gets its healthy pink tone from the blood vessels in the nail bed, which lie beneath the plate. The technical name for nails is Onyx, and the study of nails is called Onychology.