Itching or irritation anywhere on the body can cause discomfort. But when it occurs in an area as sensitive as the vagina and vulva (the labia, clitoris, and vaginal opening), it can be especially uncomfortable. Most genital itching and irritation isn't a major concern. But because they can be symptoms of an infection, it's always a good idea to call your health care provider.
February 29 is a date that usually occurs every four years, and is called leap day. This day is added to the calendar in leap years as a corrective measure, because the Earth does not orbit the sun in precisely 365 days. The Gregorian calendar is a modification of the Julian calendar first used by the Romans.
See all leap years between 2015 and 2100. A leap year is a year with 366 days instead of 365; every 4 years in February one extra day is added. This is done because one year doesn't contain 365 days but 365.25 days. By adding once in the 4 years one extra additional day this problem is solved.