What Causes Bleeding For A Month?

i experienced a bleeding in a month now.. im single neved had an sexual intercourse. my menstration is not normal and i have a urinary tract infections history. my vagina disposed a bad odor? what is this mean? i am 40 yrs old, 5'4 inches in height and 100 lbs. i had an breast cyst removal twice and my UTI was on and off. now i am bleeding and smell bad