Diagnostic finding
Leukocytosis
An increase in the number of leukocytes in circulating blood, typically defined as a white blood cell count above the upper limit of the normal reference range for age and physiological state (adults: 4-11 × 10⁹/L). Possible causes are infection (bacterial, viral, fungal), inflammation (arthritis, allergies, burns, injury, surgery), intense exercise, steroids, and myeloproliferative disorders.
Also known as: Leucocytosis, Neutrophilia, High white blood cell count
Referencing diagnoses
- Acute febrile neutrophilic dermatosis
- Acute intermittent porphyria
- Acute mesenteric ischemia
- Acute pancreatitis
- Acute respiratory distress syndrome
- Alcoholic liver disease
- Anorectal abscess
- Aortic dissection
- Appendicitis
- Ascites
- Brain abscess
- Cellulitis
- Cholangitis
- Cholecystitis
- Choledocholithiasis
- Colovesical fistula
- COVID-19
- Crohn disease
- Discitis
- Diverticulitis
- Epididymitis
- Erysipelas
- Familial mediterranean fever
- Femoral hernia
- Henoch-Schönlein purpura
- Hypernatremia
- Inguinal hernia
- Ischemic colitis
- Kawasaki disease
- Liver abscess
- Meckels diverticulum
- Meningitis
- Mesenteric adenitis
- Mononucleosis
- Necrotizing fasciitis
- Osteomyelitis
- Osteosarcoma
- Otitis externa
- Ovarian torsion
- Pelvic inflammatory disease
- Perforated ulcer
- Peritonitis
- Pilonidal disease
- Pleural empyema
- Pneumonia
- Premature rupture of membranes
- Pseudomembranous colitis
- Pulmonary edema
- Pulmonary embolism
- Pyonephrosis
- Reactive arthritis
- Rectus sheath hematoma
- Retropharyngeal abscess
- Rheumatoid arthritis
- Shock
- Sickle cell disease
- Splenic abscess
- Spontaneous bacterial peritonitis
- Staphylococcal scalded skin syndrome
- Urolithiasis
- Wegener's granulomatosis
Note: Lists existing diagnoses in Diagnotize only.