Educational use only: Symptom.Today is an educational tool and does not provide medical advice, diagnosis, or treatment. Results are not a substitute for professional medical care. If symptoms are severe, worsening, or concerning, seek medical attention immediately. In an emergency, call your local emergency number.
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A feeling of instability or the knee 'giving way' and bloating or abdominal discomfort
When a feeling of instability or the knee 'giving way' and bloating or abdominal discomfort appear together, the differential narrows. Below are the most likely causes — and the dangerous ones to never miss.
MOST LIKELY
MUST NOT MISS
When to seek urgent help
Seek urgent care if a feeling of instability or the knee 'giving way' and bloating or abdominal discomfort is sudden and severe, accompanied by fever, neurological changes, breathing difficulty, or rapidly worsens.
FAQ
What does it mean when I have a feeling of instability or the knee 'giving way' and bloating or abdominal discomfort?
When a feeling of instability or the knee 'giving way' appears with bloating or abdominal discomfort, the differential narrows. The most likely matches are listed above; serious causes you should not miss are flagged separately.
When should I seek urgent care?
Get medical help immediately if symptoms are sudden, severe, accompanied by chest pain, breathing difficulty, neurological changes, high fever, or rapid worsening.
Can I diagnose this myself?
No. This page is educational only. A clinician can correlate symptoms with exam findings, history, and tests.