Top of my knee is swollen: what to know

A soft, localised swelling above the kneecap can follow repeated kneeling or pressure and may fit Knee Bursitis. A fuller knee with stiffness can occur with Knee Osteoarthritis, while sudden pain and marked warmth can occur with Gout. A twist, pop, locking, or giving-way may point toward an internal injury such as an ACL Tear or Meniscus Tear. A Baker's Cyst usually creates fullness behind the knee rather than directly above it, but a clinician can distinguish these patterns. Swelling can also reflect fluid inside the joint, and the location alone cannot identify its cause.

Pause running, jumping, kneeling, and deep squats if they worsen symptoms. Elevate the leg, use a wrapped cool pack for short periods, and keep the knee moving gently within a comfortable range. Avoid pressing hard on the swollen area or returning to sport while the knee buckles or locks. Record whether the swelling followed a twist, exercise, illness, or new medication. Book an assessment if it persists, recurs, or interferes with walking; Joint Aspiration may be discussed when fluid needs evaluation or relief.

Get urgent help if the knee is suddenly very swollen after an injury, visibly deformed, locked, or impossible to bear weight on. Seek prompt care for a hot red knee, fever, severe worsening pain, or swelling in the calf with breathlessness or chest pain. These signs need timely evaluation for serious injury, infection, or a circulation problem.

Ask whether the swelling is in the joint or a nearby tissue, whether imaging is needed, and which activities you can safely continue. Tell the clinician about clicking, locking, instability, fever, prior attacks, and any recent twist or impact.