Hi, Laperoscopic gall bladder surgery is not likely to cause profuse vaginal bleeding. So vaginal bleeding seems to be a separate entity,following your delivery in March. If you are breast feeding/ weaning, you are likely to get menstrual irregularity due to hormonal imbalance. you need to get treatment for excessive bleeding,as it leads to anemia & weakness,which in turns increases bleeding. Please visit your Gynecologist & give your detailed history. You will be subjected to detailed physical examination, blood testing& genital ultrasonography if needed. this will point out the causative factor-followed by treatment plan. usually a course of hormones is given for three months,along with healthy diet/iron,vitamin,calcium supplement.in such cases to help in normalizing menses. Thanks.