Why is the knee swollen and painful when it rains on cloudy days?

"Doctor, when it rains on a cloudy day, it's just like the weather forecast. It hurts badly, and sometimes it still accumulates water. What's wrong? "

My knee hurts in rainy days, and I may have arthritis.

Ordinary people think that when the weather changes, it is cold or wet, their joints will hurt, so when it comes to knee pain, it is considered rheumatism.

In fact, most elderly people's knee pain is due to cartilage wear and joint aging. This disease is called knee osteoarthritis, which is a problem that almost everyone will have when they reach a certain age. And the old cold legs in the vast majority of the elderly are this disease.

What is knee arthritis?

Knee arthritis is a degenerative change of knee joint caused by many reasons, including cartilage wear, osteophyte (bone spur) at the edge of joint, synovitis, contracture or relaxation of ligament and joint capsule, etc. It basically involves all the structures around the knee joint, and finally there are symptoms such as pain, deformation and swelling.

The left side is a normal knee joint and the right side is an arthritic knee joint.

Pathogenic signals of knee arthritis in middle-aged and elderly people;

1. Knee joint often has dull pain, which gets worse during exercise and gets better after rest.

2. When it rains on cloudy days, the climate will get cooler and the symptoms will get worse.

3. Sometimes there is acute pain, stiff joints, and there is a click when moving.

4. My knee is swollen, and I feel that many places are bulging or swollen.

5. Going upstairs and downstairs is painful, squatting is difficult, and joint stiffness is aggravated after sedentary.

Why does the knee joint ache in rainy days?

It is raining on cloudy days, the weather is cold, the knee joint is in a low temperature environment, the local blood flow speed slows down, the circulation becomes worse, the knee joint tissue structure is ischemic and anoxic, which affects its metabolism, and a large number of metabolic wastes cannot be discharged in time and effectively, producing harmful substances such as lactic acid, stimulating subchondral bone nerve tissue, increasing its susceptibility and causing knee joint pain. The function of knee joint is affected, and the earliest reaction is discomfort such as unfavorable activity, soreness or pain.

What should I do if my knee hurts in rainy days?

First of all, keep your limbs warm, pay attention to closing doors and windows to reduce the entry of wind, cold and moisture.

Secondly, strengthen leg exercise, strengthen muscle strength, promote local blood circulation and increase the stability of knee joint.

Finally, find out the cause as soon as possible and actively accept the corresponding treatment, so as not to aggravate the condition and increase the difficulty of treatment.