Dreadlocks, also called locks, a ras, dreads, "rasta" or Jata (Hindi), are matted coils of long hair.
Dreadlocks are usually intentionally formed; because of the variety of different hair textures, various methods are used to encourage the formation of locks such as backcombing. If the hair is not brushed or cut, it will tangle together as it grows, eventually resulting in the twisted, matted ropes of hair known as dreadlocks.
There are many reasons among various cultures for wearing locks. Locks can be an expression of deep religious or spiritual convictions, a manifestation of ethnic pride, a political statement, or be simply a fashion preference.