Why does blood clot? How does it happen?

blood clot picture - blood clot in our body
@sahyd2don (2941)
India
January 14, 2007 11:03am CST
please explain.
1 person likes this
2 responses
@Phlamingho (7822)
• Denmark
14 Jan 07
There can be several reasons such as ageing, building up of fat and so on.
1 person likes this
• India
14 Jan 13
It is a natural process, if blood will not clot all blood from body will drainout, the almighty did this to save us lol.