Pregnancy with back pain Ureteral obstruction, ovarian tumor, kidney stone, ovarian torsion, placenta abruptio, abdominal muscle strain and rupture. Medical problems causing low back pain Kidney lesions Kidney stones, kidney infection (pyelonephritis), polycystic kidney, kidney infarction, kidney tumor, etc. If a kidney tumor is present, back pain will be accompanied by hematuria. Abdominal aortic aneurysm About 10% of patients with abdominal aortic aneurysm will use low back pain. If the abdominal aortic aneurysm is adjacent to the ureter. A small number are associated with hematuria due to ureteral trauma or irritation. Back problems The back muscles are often fatigued or sprained, excessive exercise can cause spasms, and herniated or slipped intervertebral discs often cause pain on one side. Acute back pain can be accompanied by abdominal pain. Gastrointestinal problems Pancreatitis, constipation, splenic flexure syndrome, colon cancer, inflammatory bowel disease, ischemic colitis, diverticulosis, appendicitis, giant spleen, diverticulitis, gastric ulcer, irritable bowel syndrome, food poisoning can cause and are often accompanied by other symptoms such as abdominal discomfort, nausea and vomiting. Gynecological lesions In women, ovarian cysts, midmenstrual pain (mittleschmerz), polycystic ovary syndrome, miscarriage, inflammatory pelvic disease, endometritis, and ectopic pregnancy. Blood clots Sometimes, a blood clot obstructs the ureter causing acute renal colic. Blood clots can originate from renal pelvis tumors, renal parenchymal tumors, hemophilia, glomerulonephritis, sickle cell disease, and malignant tumors. There are also post-renal operations, such as puncture biopsies. Herpes zoster Herpes zoster is a viral infection, common in the lower back, commonly known as tangles, where pain often precedes the typical skin manifestations. Treatment is based primarily on the severity of symptoms and includes antiviral and pain relief. Spinal neuritis Spinal neuritis arises from trauma or injury to the nerve roots of the thoracolumbar spine and can also be due to trauma to the rib-vertebral junction. It resembles renal colic when it occurs in the 10th-12th ribs. Intercostal nerve injury or scarring can also cause pain.