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Abdominal pain can be characterized by the region it affects. | |
ICD-10 | R10 |
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ICD-9 | 789.0 |
MedlinePlus | 003120 |
Abdominal pain (or stomach ache) is a common symptom associated with transient disorders or serious disease. Diagnosing the cause of pain in the abdomen can be difficult, because many diseases can cause this symptom. Most frequently the cause is benign and/or self-limiting, but more serious causes may require urgent intervention.
Differential diagnosis[]
- Gastrointestinal
- GI tract
- Inflammatory: gastroenteritis, appendicitis, gastritis, esophagitis, diverticulitis, Crohn's disease, ulcerative colitis, microscopic colitis
- Obstruction: hernia, intussusception, volvulus, post-surgical adhesions, tumours, superior mesenteric artery syndrome, severe constipation, hemorrhoids
- Vascular: embolism, thrombosis, hemorrhage, sickle cell disease, abdominal angina, blood vessel compression (such as celiac artery compression syndrome), Postural orthostatic tachycardia syndrome
- digestive: peptic ulcer, lactose intolerance, coeliac disease, food allergies
- Glands
- Bile system
- Inflammatory: cholecystitis, cholangitis
- Obstruction: cholelithiasis, tumours
- Liver
- Inflammatory: hepatitis, liver abscess
- Pancreatic
- Inflammatory: pancreatitis
- Bile system
- GI tract
- Renal and urological
- Inflammation: pyelonephritis, bladder infection
- Obstruction: kidney stones, urolithiasis, Urinary retention, tumours
- Vascular: left renal vein entrapment
- Gynaecological or obstetric
- Inflammatory: pelvic inflammatory disease
- Mechanical: ovarian torsion
- Endocrinological: menstruation, Mittelschmerz
- Tumors: endometriosis, fibroids, ovarian cyst, ovarian cancer
- Pregnancy: ruptured ectopic pregnancy, threatened abortion
- Abdominal wall
- muscle strain or trauma
- muscular infection
- neurogenic pain: herpes zoster, radiculitis in Lyme disease, abdominal cutaneous nerve entrapment syndrome (ACNES), tabes dorsalis
- Referred pain
- from the thorax: pneumonia, pulmonary embolism, ischemic heart disease, pericarditis
- from the spine: radiculitis
- from the genitals: testicular torsion
- Metabolic disturbance
- uremia, diabetic ketoacidosis, porphyria, C1-esterase inhibitor deficiency, adrenal insufficiency, lead poisoning, black widow spider bite, narcotic withdrawal
- Blood vessels
- aortic dissection, abdominal aortic aneurysm
- Immune system
- sarcoidosis
- vasculitis
- familial Mediterranean fever
- Idiopathic
- irritable bowel syndrome (affecting up to 20% of the population, IBS is the most common cause of recurrent, intermittent abdominal pain)
Acute abdominal pain[]
Acute abdomen can be defined as severe, persistent abdominal pain of sudden onset that is likely to require surgical intervention to treat its cause. The pain may frequently be associated with nausea and vomiting, abdominal distention, fever and signs of shock. One of the most common conditions associated with acute abdominal pain is acute appendicitis.
Selected causes of acute abdomen
- Traumatic : blunt or perforating trauma to the stomach, bowel, spleen, liver, or kidney
- Inflammatory :
- Infections such as appendicitis, cholecystitis, pancreatitis, pyelonephritis, pelvic inflammatory disease, hepatitis, mesenteric adenitis, or a subdiaphragmatic abscess
- Perforation of a peptic ulcer, a diverticulum, or the caecum
- Complications of inflammatory bowel disease such as Crohn's disease or ulcerative colitis
- Mechanical :
- Small bowel obstruction secondary to adhesions caused by previous surgeries, intussusception, hernias, benign or malignant neoplasms
- Large bowel obstruction caused by colorectal cancer, inflammatory bowel disease, volvulus, fecal impaction or hernia
- Vascular : occlusive intestinal ischemia, usually caused by thromboembolism of the superior mesenteric artery
By location[]
Location[1]
- Upper middle abdominal pain
- Stomach (gastritis, stomach ulcer, stomach cancer)
- Pancreas pain (pancreatitis or pancreatic cancer, can radiate to the left side of the waist, back, and even shoulder)
- Duodenal ulcer, diverticulitis
- Appendicitis (starts here, after several times moves to lower right abdomen)
- Upper right abdominal pain
- Liver (caused by hepatomegaly due to fatty liver, hepatitis, or caused by liver cancer, abscess)
- Gallbladder and biliary tract (gallstones, inflammation, roundworms)
- Colon pain (below the area of liver - bowel obstruction, functional disorders, gas accumulation, spasm, inflammation, colon cancer)
- Upper left abdominal pain
- Spleen pain (splenomegaly)
- Pancreas
- Colon pain (below the area of spleen - bowel obstruction, functional disorders, gas accumulation, spasm, inflammation, colon cancer)
- Middle abdominal pain (pain in the area around belly button)
- Appendicitis (starts here)
- Small intestine pain (inflammation, intestinal spasm, functional disorders)
- Lower abdominal pain (diarrhea and dysentery)
- Lower right abdominal pain
- Cecum (intussusception, bowel obstruction)
- Appendix point (Appendicitis location)
- Lower left abdominal pain
- Sigmoid colon (polyp), sigmoid volvulus, obstruction or gas accumulation)
- Pelvic pain
- bladder (cystitis, may secondary to diverticulum and bladder stone, bladder cancer)
- pain in women (uterus, ovaries, fallopian tubes)
- Right lumbago and back pain
- liver pain (hepatomegaly)
- right kidney pain (its location below the area of liver pain)
- Left lumbago and back pain
- less in spleen pain
- left kidney pain
- Low back pain
- kidney pain (kidney stone, kidney cancer, hydronephrosis)
- Ureteral stone pain
Diagnostic approach[]
When a physician assesses a patient to determine the etiology and subsequent treatment for abdominal pain the patient's history of the presenting complaint and physical examination should derive a diagnosis in over 90% of cases.
It is important also for a physician to remember that abdominal pain can be caused by problems outside the abdomen, especially heart attacks and pneumonias which can occasionally present as abdominal pain.
Investigations that would aid diagnosis include
- Blood tests including full blood count, electrolytes, urea, creatinine, liver function tests, pregnancy test, amylase and lipase.
- Urinalysis
- Imaging including erect chest X-ray and plain films of the abdomen
- An electrocardiograph to rule out a heart attack which can occasionally present as abdominal pain
If diagnosis remains unclear after history, examination and basic investigations as above then more advanced investigations may reveal a diagnosis. These as such would include
- Computed Tomography of the abdomen/pelvis
- Abdominal or pelvic ultrasound
- Endoscopy and colonoscopy (not used for diagnosing acute pain)
Management[]
Butylscopolamine (Buscopan) is used to treat cramping abdominal pain with some success.[2]
See also[]
- Recurrent abdominal pain in children
References[]
Further reading[]
- Boyle, J. T. (2001). Biopsychosocial issues in functional abdominal pain. Pediatr Ann 30 (1): 32–40..
Pain and nociception | |
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Head and neck |
Jaw and mouth (Odynophagia ) • Ear (otalgia, otitis media, otitis externa) • Eye (glaucoma) • Head (headache, migraine, tension headache, cluster headache, cerebral aneurysm, sinusitis, meningitis) • Neck (atypical myocardial infarction) |
Thorax |
Back (upper back, lower back, spinal disc herniation, degenerative disc disease, coccydynia) • Breast (perimenstrual, breast cancer) • Chest (myocardial infarction, gastroesophageal reflux disease, pancreatitis, hiatus hernia, aortic dissection, asymptomatic pulmonary embolism, Tietze's syndrome) • Shoulder (right side - cholecystitis) |
Abdominal |
Left and right upper quadrant (peptic ulcer disease, gastroenteritis, hepatitis, pancreatitis, cholecystitis, atypical myocardial infarction, abdominal aortic aneurysm, asymptomatic gastric cancer) • Left and right lower quadrant (appendicitis, ulcerative colitis, Crohn's disease, ectopic pregnancy, endometriosis, pelvic inflammatory disease, diverticulitis, urolithiasis, pyelonephritis, colorectal cancer) |
Limbs |
Arm (myocardial infarction, left arm) • Leg (deep vein thrombosis, peripheral artery occlusive disease, claudication, spinal disc herniation, sciatica) |
Joints (arthralgia) |
Small joints (osteoarthritis, rheumatoid arthritis, systemic lupus erythematosis, gout, pseudogout • Large joints (osteoarthritis, septic arthritis, hemarthrosis, osteonecrosis) • Back joints (ankylosing spondylitis, inflammatory bowel disease) • Other (psoriatic arthritis, Reiter's syndrome) |
Musculoskeletal |
Delayed onset muscle soreness, myalgia, physical trauma |
Other/unspecified |
cold pressor test, congenital insensitivity to pain, dolorimeter, HSAN (Type I, II congenital sensory neuropathy, III familial dysautonomia, IV congenital insensitivity to pain with anhidrosis, V congenital insensitivity to pain with partial anhidrosis), neuralgia, pain asymbolia, pain disorder, paroxysmal extreme pain disorder • Allodynia, breakthrough pain, chronic pain, hyperalgesia, hypoalgesia, hyperpathia, phantom pain, referred pain |
Related concepts |
Anterolateral system, gate control theory of pain, pain management (anesthesia, cordotomy), pain scale, pain threshold, pain tolerance, posteromarginal nucleus, substance P, suffering, OPQRST |
Digestive system - Gastroenterology (primarily K20-K93, 530-579) | |
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Esophagus |
GERD - Achalasia - Boerhaave syndrome - Zenker's diverticulum - Mallory-Weiss syndrome - Barrett's esophagus |
Stomach |
Gastric ulcer - Gastritis - Dyspepsia - Pyloric stenosis - Achlorhydria - Gastroptosis - Gastroparesis |
Small intestine |
Duodenal ulcer - Intussusception - Abdominal angina |
Colon |
Diarrhea - Appendicitis - Bowel obstruction - Diverticulitis - Diverticulosis - IBD (Crohn's, Ulcerative colitis) - IBS - Constipation - Megacolon (Toxic megacolon) - Anal fissure - Anal fistula - Anal abscess - Rectal prolapse |
Hernia |
Inguinal (Indirect, Direct) - Femoral - Umbilical - Incisional - Diaphragmatic - Hiatus |
Liver |
Alcoholic liver disease - Cholestasis (Mirizzi's syndrome) - Liver failure - Cirrhosis - Hepatitis - PBC - NASH - Fatty liver - Peliosis hepatis - Portal hypertension - Hepatorenal syndrome - Budd-Chiari |
Accessory digestive |
Gallbladder/Biliary tree (Gallstones, Choledocholithiasis, Cholecystitis, Cholesterolosis, Cholangitis, PSC, Biliary fistula, Ascending cholangitis) |
Other/general |
Malabsorption (e.g. celiac, Whipple's) - Tropical sprue - Hematemesis - Melena - Gastrointestinal bleeding (Upper, Lower) - Peritonitis |
See also congenital |
Template:Digestive system and abdomen symptoms and signs