Overview
It can also cause eye inflammation (uveitis) and heel pain.
Symptoms
Common signs:
- Low back pain and morning stiffness
- Low back stiffness that improves with movement, in a younger adult
Less common
- Heel pain
- Eye pain
- Tiredness
Look up a symptom: Back pain · Joints stiff after rest or in the morning · Low back stiffness that improves with movement, in a younger adult
When to get medical care
Causes
Immune inflammation.
Does it spread or run in families?
- It isn't contagious. You can't catch it from someone else.
- It can run in families. Tell your doctor if a parent, brother, or sister has it.
Who is more likely to get it
- Men
- Family history
Possible complications
Diagnosis
Tests and imaging.
Questions you may be asked
- Morning stiffness length
The exam
Spine motion.
Tests
Tests, if needed:
- HLA-B27 blood test:
- X-ray or MRI:
Treatment
Keep moving.
Self-care
- Daily stretching and exercise
- Good posture
- Don't smoke
Medicines
Medicines that may help:
| Medicine | Helps with | Good to know |
|---|---|---|
| NSAIDs | Pain | |
| Biologics | Inflammation |
OwieClear doesn't give doses: follow the label or your healthcare professional. Medicine names here are examples, not a full list.
Which doctor treats this
- Start with your primary care provider (family doctor or internist).
- They may send you to a rheumatologist (joint and immune system doctor).
Living with it
Support groups and helplines
- Arthritis Foundation: Helpline, exercise programs, and online community.
Pregnancy and breastfeeding
- If you're pregnant or planning to be, tell your prenatal provider about this condition.
- Don't start or stop any medicine on your own. Some are safe in pregnancy and some need to be changed.
- Ask before taking any pain reliever. The FDA advises avoiding ibuprofen and naproxen after 20 weeks unless your doctor says to.
- Breastfeeding: Most medicines are fine, but ask. The NIH LactMed database lists what's known about each one.
Outlook
Treatment keeps most people active.
Getting ready for your visit
Bring a list of your symptoms and medicines.
What to bring
- A list of your medicines and supplements
- Notes on when symptoms started and what makes them better or worse
Questions to ask
- Do I need a biologic?
Research studies
Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.
Search ClinicalTrials.gov for studies on Ankylosing spondylitis
Sources
Last updated 2026-11-12.