Should I use ice or heat on a swollen knee?

How to ice a swollen knee properly

• Wrap ice or a bag of frozen peas in a thin, damp cloth; never put ice directly on the skin
• Apply for 15 to 20 minutes, then remove it for at least an hour
• Repeat several times a day for the first two to three days, and after activity later on
• Check the skin: stop if it becomes numb, white or blistered
• Take extra care if you have diabetes, poor circulation or reduced sensation in the leg

Compression, elevation and movement

Ice works better alongside the other simple measures. A light elastic bandage or knee sleeve limits fluid build-up; it should feel snug, not tight, and you should loosen it if your foot tingles, swells or changes colour. Raising the leg so the knee is above the level of the heart, with a pillow under the calf rather than behind the knee, lets fluid drain.

Gentle movement matters too. Bending and straightening the knee within a comfortable range and tightening the thigh muscle with the leg straight act like a pump that helps clear swelling and keeps the quadriceps working.

When heat makes sense

Heat relaxes muscles and eases stiffness. It can help an arthritic knee that is stiff in the morning but not swollen, or tight hamstrings and calves. Use a warm pack or a warm shower for 15 to 20 minutes, never hot enough to burn. Avoid heat on a knee that is freshly injured, visibly swollen, or warm to touch. Some people with chronic stiffness find a short period of warmth before exercise and ice afterwards works well.

When home care is not enough

Home care helps swelling settle, but it does not treat the cause. See a knee surgeon in Doha if the knee swelled within hours of an injury, if swelling is still present after one to two weeks, or if the knee locks, gives way or will not straighten. Go to emergency the same day if the knee is hot, red and swollen with fever, or if you cannot bear weight. At Aman Hospital, Dr. Gelber can examine the knee and arrange imaging when needed.