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6. Baker’s Cyst
A Baker’s cyst is a fluid-filled swelling that develops at the back of the knee. It’s often caused by conditions like arthritis or a cartilage tear and may make one knee feel tight or swollen—especially when bending or straightening the leg.
7. Bl00d Clot or Circulation Issue
Though rare, a blood clot (deep vein thrombosis) in the leg can cause swelling in the knee area, especially if combined with calf swelling, warmth, or pain. It’s a medical emergency and needs immediate attention.
When to See a Doctor
You should seek medical help if:
The swelling is sudden, severe, or accompanied by fever
The knee is hot, red, or painful to touch
You can’t walk or bend the knee
Swelling lasts more than a few days without improvement
Final Thoughts
One swollen knee isn’t always a reason to panic, but it’s definitely something to pay attention to. From minor injuries to more serious joint diseases or infections, there are many possible reasons. Getting
a proper diagnosis is the first step to effective treatment and long-term knee health
