A 3mm long inflammatory mass in the abdominal cavity is generally not serious. Inflammatory abdominal 3mm lump, most is due to bacteria and other pathogenic microbial infection caused by inflammatory reaction, through active anti-infection treatment or surgical resection, generally can be fully recovered, simple inflammatory lump is not serious. Inflammatory abdominal mass 3mm long, should go to the regular hospital for examination, combined with the specific location of the mass, the patient’s clinical symptoms, the degree of disease to take appropriate treatment measures. Abdominal inflammatory masses can be treated with antibiotics, such as ceftriaxone sodium, levofloxacin, metronidazole and other antibiotics. If antibiotic treatment is ineffective and the inflammatory mass further aggravates, forming abdominal abscess, consider puncture drainage abscess treatment.