Marines must request paternity leave within 25 days after the birth of the baby. If deployed, the commander can approve paternity leave within 90 days of deployment and can authorize it outside that time period for extraordinary circumstances.
An injury to a nail may result in the loss of the nail. As long as the nail bed itself wasn't damaged, a lost nail should eventually grow back. Healthy fingernails grow at a rate of about 0.10mm per day, but toenails are slower, growing at only about one half to one third of a fingernail's rate.
In the surgical procedure the surgeon severs the transverse carpal ligament and then sutures up the skin over the severed ligament with the hope that the ligament will grow back together with more space. Sometimes the ligament grows back with more space and other times it grows back with the same space as before.