Disease or Syndrome
sacroiliitis
Subclass of:
Arthritis
Definitions related to sacroiliitis:
  • Inflammation of the SACROILIAC JOINT. It is characterized by lower back pain, especially upon walking, fever, UVEITIS; PSORIASIS; and decreased range of motion. Many factors are associated with and cause sacroiliitis including infection; injury to spine, lower back, and pelvis; DEGENERATIVE ARTHRITIS; and pregnancy.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Inflammation of the sacroiliac joints, which connect the lower spine to the pelvis.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
  • Sacroiliitis (say-kroe-il-e-I-tis) is an inflammation of one or both of your sacroiliac joints - situated where your lower spine and pelvis connect. Sacroiliitis can cause pain in your buttocks or lower back, and can extend down one or both legs. Prolonged standing or stair climbing can worsen the pain.
    Mayo Clinic
    Mayo Foundation for Medical Education and Research, 2025
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.