Hi, Welcome to iclinq.com. There are different conditions that can cause abdominal bloating that goes from non-urgent to serious conditions. If he is not passing bowel movements or gas and has remarkable abdominal pain, it can be a serious condition like bowel obstruction and needs to be taken to hospital emergency department. On the other hand, if he is passing gas and bowel movements, he needs to be checked for H. Pylori which is a stomach bacteria and has a specific treatment.
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