Water on the knee, or knee effusion, refers to the buildup of fluid in and around the knee joint. This condition leads to a painful, swollen knee and can be caused by various factors, including ...

Some amount of fluid around your knee is necessary — it helps cushion your bones and keeps the joint limber. But if too much fluid accumulates, it can lead to an effusion (or an abnormal collection of ...

Of all causes, overuse is the most common reason for an infused knee. Fluid buildup is your body’s way of protecting the area from extra damage. You may have minor swelling after a vigorous activity.

Ways of managing knee pain at home include exercise, using a knee support, dietary measures, and weight management. Aromatherapy and CBD oil may also help. Many short-term knee problems do not need ...