<s>[INST] Since my husband has had his appendix removed his breath has been really bad. Also, when he has a bowel movement the oder stinks up the whole place. We ve been married for twenty one years and he didn t have these problem until two years ago when he had the procedure. Could these problem be because he has had his appendix taken out? [/INST] Hello, Gastric disturbances can definitely affect your breath. Has your husband had routine dental exams and cleanings? If not, schedule a dental visit. If his dental health including his periodontal status and daily home care is good, I would consult a gastroenterologist for an evaluation. Well-balanced vitamins with no deficiencies or excess can be a factor. Basic blood testing may disclose an imbalance or raise a concern with organ function. Keep well HY Chat Doctor.  Diet choices can affect this as well. Consider changes made after the surgery. Thank you for your inquiry. </s>