{"id":1939,"date":"2026-01-25T12:27:05","date_gmt":"2026-01-25T12:27:05","guid":{"rendered":"https:\/\/viralarticles.it.com\/?p=1939"},"modified":"2026-01-25T12:27:05","modified_gmt":"2026-01-25T12:27:05","slug":"why-is-one-knee-swollen-but-not-the-other-2","status":"publish","type":"post","link":"https:\/\/viralarticles.it.com\/?p=1939","title":{"rendered":"Why Is One Knee Swollen but Not the Other?"},"content":{"rendered":"<p>Noticing that only one knee is swollen can be alarming\u2014especially 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\u2019s something minor or a sign you need medical attention.<\/p>\n<div class=\"code-block code-block-3\"><\/div>\n<p>1. Injury or Trauma<\/p>\n<div class=\"code-block code-block-4\"><\/div>\n<p>The most common reason for swelling in just one knee is trauma or overuse. You may not even remember the specific moment of injury\u2014especially if it was a repetitive motion injury. Some possible issues include:<\/p>\n<div class=\"code-block code-block-5\"><\/div>\n<p>Ligament sprain or tear (ACL, MCL)<\/p>\n<div class=\"code-block code-block-6\"><\/div>\n<p>Meniscus tear<\/p>\n<div class=\"code-block code-block-7\"><\/div>\n<p>Patellar dislocation<\/p>\n<p>Fracture or bone bruise<\/p>\n<p>In these cases, swelling often appears within hours and may be accompanied by pain, stiffness, or a feeling of instability in the joint.<\/p>\n<p>2. Bursitis<\/p>\n<p>Bursae are small fluid-filled sacs that cushion the knee. If one becomes irritated due to pressure, trauma, or kneeling for long periods, it can result in prepatellar bursitis (also known as \u201chousemaid\u2019s knee\u201d). This usually affects only one knee and causes visible swelling at the front of the knee.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Noticing that only one knee is swollen can be alarming\u2014especially when the other knee feels perfectly fine. While swelling in both knees often points to<\/p>\n","protected":false},"author":1,"featured_media":1940,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1939","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-viral-article"],"_links":{"self":[{"href":"https:\/\/viralarticles.it.com\/index.php?rest_route=\/wp\/v2\/posts\/1939","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/viralarticles.it.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/viralarticles.it.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/viralarticles.it.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/viralarticles.it.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1939"}],"version-history":[{"count":1,"href":"https:\/\/viralarticles.it.com\/index.php?rest_route=\/wp\/v2\/posts\/1939\/revisions"}],"predecessor-version":[{"id":1941,"href":"https:\/\/viralarticles.it.com\/index.php?rest_route=\/wp\/v2\/posts\/1939\/revisions\/1941"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/viralarticles.it.com\/index.php?rest_route=\/wp\/v2\/media\/1940"}],"wp:attachment":[{"href":"https:\/\/viralarticles.it.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1939"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/viralarticles.it.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1939"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/viralarticles.it.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1939"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}