Right lower abdominal pain after taking anti-inflammatory drugs stomach bloating may be due to the side effects of drugs or indigestion, dysbiosis and so on. 1. Drug side effects: anti-inflammatory drugs in medicine refers to antibacterial drugs, refers to a variety of antibiotics with bactericidal and bacteriostatic activity, such as penicillin, furazolidone, sulfadiazine, ofloxacin and other chemical drugs. The side effects of such drugs are mainly gastrointestinal symptoms like nausea, vomiting, acid reflux, belching and flatulence. So when taking antibacterial drugs for lower right abdominal pain symptoms like flatulence may occur. 2. Bacterial dysbiosis: While using antibiotics and other drugs to treat gastrointestinal diseases, they often kill or inhibit probiotics in the intestinal tract. Therefore, when the bacterial flora imbalance will also appear bloating or even diarrhea, nausea and other discomfort. Bifidobacteria and other probiotics can be used to assist in regulating the treatment. 2. Indigestion: when indigestion, gastrointestinal digestion and absorption function decline, stomach contents in the stomach for too long time caused by gastrointestinal power decline leading to gastric distension occurs. If the lower right abdominal pain after taking anti-inflammatory drugs bloating situation can not be tolerated, should go to the regular hospital under the guidance of a professional doctor to identify the causes of symptomatic treatment.