Why Is One Knee Swollen but Not the Other?
Noticing that only one knee is swollen can be alarming—especially when the other knee feels perfectly fine. While swelling in both knees often points to systemic issues like arthritis, swelling in just one knee usually indicates a localized problem. Understanding the potential causes behind unilateral knee swelling can help you decide whether it’s something minor or a sign you need medical attention.
1. Injury or Trauma

The most common reason for swelling in just one knee is trauma or overuse. You may not even remember the specific moment of injury—especially if it was a repetitive motion injury. Some possible issues include:
- Ligament sprain or tear (ACL, MCL)
- Meniscus tear
- Patellar dislocation
- Fracture or bone bruise
In these cases, swelling often appears within hours and may be accompanied by pain, stiffness, or a feeling of instability in the joint.
2. Bursitis
CONTINUE READING ON THE NEXT PAGE 🥰💕
Lemon-Infused Chia Elixir for Fat Elimination
First-time Creation
How to Permanently Rid Your Home of Fleas, Ants, and Cockroaches
Cilantro Lime Rice Recipe
Easy Minced Meat Stuffed Bread Light as a Feather Delicious Even for beginner
Dessert Recipe Without Dairy that Doesn’t Need Baking, Only 3 Ingredient
How To Make FLAKY APPLE PIE BARS
Baked Chicken and Vegetable Patties with Creamy Potato Mash and Tomato Sauce
Discover the advantages of using natural treatments. Natural Ways to Get Rid of Mucus and Phlegm at Home – Stay Healthy without Medication