<prompt> Injury by Lathi -ContusionLacerationStab woundAbrasion  <response>: The synopsis of forensic medicine toxicology - Dr.k.s narayan reddy Pg no . 106 ;28th edition ; Contusion Bruises it is the effusion of blood into tissues ,due to rupture of blood vessels and due to blunt violence . Lathi injury is a injury caused by blunt force . in contusion there is painful swelling and crushing or tearing of the subcutaneous tissue ,usually without destruction of the skin . 