Is h pylori life long without treatment?

by mary
(mount pleasant, MI)

When i was 21 i had a boyfriend in South America. I lived there maybe 2-3 years total over 10 years. I never had symptoms of h pylori and never even knew what is was until recently.

I got tested a few months back with the blood test and also biospy...both were negative. I did this because my dad just passed away from stomach cancer and many websites said to test for it if first degree relatives develops stomach cancer.

Ive lived with my parents most of my life. I would like to know if h pylori just sponteously cleared from me or once infected would it have stayed with me for decades? Im pretty sure i never even contracted it in the first place but would like to ask for your advice. Thank You