<prompt> Brown color of contusion is due to -HaematodinReduced hemoglobinHaemosiderinBilirubin  <response>: Ans. is c i.e., Haemosiderin Color change and age of bruise Contusion!o After a bruise has appeared, it tends to get smaller from periphery to center and passes through a series of colour changes. These are due to disintegration of RBCs by hemolysis and breakdown of hemoglobin into the pigments haemosiderin, haematodin and bilirubin changes are: -At first: Red oxyhemoglobinFew hours to 3 days : blue reduced hemoglobin4th day : Bluish-black to brown haemosiderin5-6 days: Greenish haematodin7-12 days : Yellow Bilirubin2 weeks : Normal absorption of pigment 