Pain in the left side of the abdomen can have numerous causes that include problems with the internal organs of the digestive system, urinary system, bones of the pelvic cavity, muscles of the abdominal wall or changes in the vessels, nerves or skin in the region.
In addition to pain, it is important to be aware of other symptoms that may give clues to the specific source. However, to diagnose the exact cause of abdominal pain, an x-ray, CT scan, or MRI may be needed, sometimes in conjunction with other more specific tests, such as a colonoscopy.
In any case, if the pain comes on suddenly, is very severe, or comes along with fever, dizziness, or loss of consciousness, you should see a doctor as soon as possible.
Pain in the upper left quadrant
Pain in the upper left quadrant of the abdomen (above the belly button) can be caused by problems with the organs in that area, but it can also be caused by pain radiating from the lower abdomen and rib cage. The many possible causes include the following:Stomach: gastritis, stomach ulcers, or hiatal hernia; also more serious diseases such as cancer and stomach polyps. Large intestine: constipation, diverticulosis, intestinal volvulus (twisting of the intestine on itself). Abdominal muscles: bruises, muscle strain, excessive exercise, abdominal hernia, psoas abscess, rectal sheath hematoma. Pancreas: chronic or acute pancreatitis, pancreatic cancer. Spleen: splenic infarction, splenomegaly, ruptured by trauma (common in traffic accidents). Kidneys: kidney stones, glomerulonephritis, pyelonephritis (kidney infection). adrenal glands: adrenal adenoma (benign tumor), adrenal carcinoma (malignant tumor). Lungs: pneumonia, pleurisy, pulmonary embolism. Heart: myocardial infarction, angina pectoris, pericarditis, myocarditis, endocarditis. Diaphragm: abscesses. Others: abdominal adhesions, peritonitis, intestinal obstruction.
Pain in the lower left quadrant
Pain in the lower left quadrant of the abdomen, as in the upper left quadrant, can be caused by problems with the organs and tissues located in that part of the body, but also by pain reflected in other areas. In women, it is often related to the menstrual cycle, whether in the ovaries, fallopian tubes or uterus.Colon: Constipation, accumulation of splenic flexure gas, irritable bowel syndrome, diverticulitis and diverticulosis, colorectal polyps, sigmoid colon volvulus, inflammatory conditions such as Crohn’s disease or ulcerative colitis, ischemic colitis, infections (e.g. Clostridium difficile after administration of antibiotics). Appendix: Appendicitis usually causes pain on the right side but can sometimes be reflected on the left side. female reproductive organs: ovulation (mid-cycle pain), gonorrhea, ectopic pregnancy, pelvic inflammatory disease, endometriosis, polycystic ovary syndrome, ovarian cyst, fibroid tumors, etc. male reproductive organs: gonorrhea, spermatic cord disorders, testicular disorders, etc. Peritoneum: peritonitis, ascites. Vascular and blood problems: abdominal aortic aneurysm, atherosclerosis and embolism in the mesenteric arteries, hereditary angioedema, porphyrias, sickle cell anemia, etc. Dermis: herpes zoster, dermatitis exacerbated with infections and abscesses. Others: pelvic adhesions, intestinal obstruction.