I previously had many miscarriages and they believe I have a condition called ovarian cyst. There is a small lump in my breast and is now being checked further. This is a difficult question to answer as specific details are missing. The most common bacteria known to be related to chronic duodenal ulcer is Helicobacter. This is usually treated with several drugs.
Eradication is common but so is re-infection.
Helicobacter has not been associated with endometrosis or breast disease or ovarian cyst. Endometrosis commonly causes pain especially around the time of menstruation and is associated more commonly with the inability to conceive rather than miscarriages. Endometrosis can occur over the ovary and can cause a cyst on the ovary. Endometrosis is not commonly associated with breast disease either. It would be wise to get the breast lump evaluated by a physician.