we do not any feel pain when we trim our nails are cut our hair why
As a result, we do not sense any pain at the time of clipping nails and cutting hair.
Answers
Pain sensors and nerves are protected by many layers of skin and blood vessels. When disrupted, it will sense pain The nails and strands of hair are formed of keratin, which do not support nerves and blood vessels.
They are considered “dead” for that reason, these particular parts of these systems are made for warmth and protection (hair) and protection/tool for survival (nails).
This is because the cells that make up hair or nails of a person are dead cells. So, when they are cut, even then we don't feel any kind of pain. However, if you cut some other part like finger, or so, you will feel pain because they are made up of living cells and bleeding will start. Then, proteins will form the new skin there also in a few days with the help of cell organelles.