it seems froms your complain that you are suffering from gums problem either gingivitis or periodontitis. it can be due to plaque, calculus,  trauma from brushing and many other causes. advised to purchase soft bristle tooth brush colgate slim soft and hexidine mouth wash twice daily for a week and contact 9755597831 for further information

That may be one of the reasons for bleeding gums. The other reasons may be- Hard or soft deposits on teeth, that is tartar and plaque, which cause gingivitis or pyorrhoea leading to bleeding gums. Improper brushing technique Get yourself checked by a dentist for proper treatment.