composite image of infected intestine highlighted green on woman`s body

ache acid acidophile appendicitis appendix bacterium benign biomedical bowel cancer carcinoma cecum colitis colon constipation cramps diarrhea digestive disease duodenum food gland highlighted human ileum illustration immune infection infectious inflammation internal intestinal intestine irritable jejunum lactic lactobacillus large metabolism micro microbiology oncology one only organ organism pain pathogen poisoning probiotic relationship sigmoid small stomach symbiotic symptom syndrome system track transverse tumour ulcer woman wound