Tightness in the abdomen and breathlessness may be caused by gastrointestinal spasm, cholecystitis, pancreatitis, peritonitis, peritoneal effusion and other diseases, you can massage or hot compresses on the abdomen, and sometimes surgical treatment, antispasmodic treatment and so on are needed. 1. Gastrointestinal spasm: If gastrointestinal spasm, it will lead to tightness of the abdomen and restriction of breathing, you can apply hot compresses to the abdomen or massage the abdomen, which can make the muscles relax, thus relieving the above symptoms. 2. Cholecystitis, pancreatitis: if cholecystitis, pancreatitis, will lead to severe abdominal pain, the abdomen can be tight, may affect breathing, need antispasmodic treatment, such as pethidine. 3. Peritonitis: If perforation or inflammation occurs in the abdominal cavity, it may lead to peritonitis, the abdomen will be tight and may affect breathing, surgery is needed to treat the perforation, and intravenous antibiotics, such as ceftazidime, ornidazole and so on are needed. 4. Peritoneal fluid: a large amount of peritoneal fluid, there may be abdominal tightness and breathlessness, can be given furosemide, spironolactone diuretic and peritoneal puncture drainage relief. Abdominal tightness and breathlessness, there may be other reasons, the patient needs to go to the hospital to do a detailed examination, to clarify the cause, and then can decide how to treat.