coolthingoftheday:

In Nepali culture, a Kumari – also known as a Living Goddess – is a pre-pubescent girl who is worshiped as an incarnation of the Hindu goddess Taleju. They are believed to be a living manifestation of the divine female energy, or devi, in Hindu cultures.

Selection criteria is very strict, and include rules such as an unblemished body (free from features such as moles, freckles or birthmarks), a chest like a lion, and thighs like a deer.

Once a Kumari begins to menstruate, it is believed that the divine goddess has vacated her body. Serious injury resulting in significant blood loss is also a cause for the vacation of a deity. 

Most Kumari are dethroned by their sixteenth birthday due to the onset of menarche, but there is one woman who was thirty years old before she was dethroned, due to the fact that she has never menstruated. In 1984, when Nepal’s then thirteen-year-old crown prince remarked on her age, she was replaced with a younger girl despite the fact that she had never gotten her period. 

(Source)