Naruto--- neji

Ok. So on the inside I love the anime naruto. But my favorite characters are neji and hinata. My one and only question (so far atleast) is, when neji's bandana falls off, what is the green mark on his forehead??? In episode 117, at the end it shows hes...

father in pain because of it...
Answers any one???

I got this info of a website for you ^^ It should explain it. I love Anime too! :D

The Hyuuga family is split into two parts: the Main House and the
Branch House. The reason they are separated is because the Main House
is destined to hold the original blood of the Hyuuga and as such its
heritage must be protected. The Branch house was created to protect
the Main House at all costs thus resulting in the death and suffering
of many a Branch House member. This slighted feeling that the Branch
House possess is not unfounded. The Branch House members are put under
a terrible curse at a young age. A curse seal Jutsu is cast on them
and the symbol of Bird in the Cage is marked into their forehead
which will stay there until they die. This brand isn't just to
distinguish the Main House from the Branch House; it is in place so
that the Main House can maintain a level of control to the lower
members of the Hyuuga clan. A simple hand seal inflicts massive amount
of agony into the mind of those who carry the mark and can quite
easily kill them if need be. Neji belongs to the Branch House, and is
marked like his fellow House members and his deceased father before
him.