Hello and welcome to Healthcare Magic. Thanks for your query.
and ingesting marijuana can aggravate your gastritis
. Smoking can have a direct irritant effect of the gastric mucosa; also marijuana by itself can stimulate appetite, increase the acid secretions and can thereby worsen pre-existing gastritis. So, I would advise you to refrain from taking it in any form.
Regarding your doubts about "metaplasia
/ cancer", you have not mentioned which part of the gastro-intestinal tract, the metaplasia was detected. So, please provide exact details of the endoscopy
report for advise on this matter.
Wish you all the best.
Dr. Jonas Sundarakumar