My weight has been in 123 pounds for the last year, i havent gained weight but my stomach is getting bigger, im 16 and im a guy?

Several possiblities: In a 16-year-old adolescent male there are several possibilities for enlarging abdomen without any weight gain. The most common would be constipation or stool compaction. Less common would be fluid in the abdomen which can be caused by liver disease ,inflammatory bowel disease. Benign and malignant tumors can also cause an overarching abdomen without weight gain. Intestinal blockage or partial o