痛风发作时关节内发生了什么？

What actually happens inside your joint when you get gout?

It doesn't just hurt. Something is growing inside you right now, silently.

Here's what's happening. Your body breaks down purines found in red meat, seafood, alcohol.

The waste product is uric acid. Normally, your kidneys flush it out, but too much builds up.

Kidneys can't keep up. Uric acid floods your bloodstream.

Then something happens. It crystallizes.

Uric acid transforms into monosodium urate crystals, sharp, needle-like, microscopic, forming silently inside your joint.

You feel nothing. Not yet. Crystals accumulate more and more until your immune system notices.

White blood cells arrive. They see the crystals as invaders, attack immediately, try to destroy them, but they can't.

Crystals are too hard to dissolve. White blood cells die trying, releasing inflammatory chemicals.

Your joint floods with inflammation. Fluid rushes in.

Pressure builds. Temperature rises. That's the pain.

Not from the crystals themselves, from your own immune system fighting something it can never win.

Big toe, ankle, knee, swollen, red, burning.

Touching it feels like fire. So gout was never just pain.

It was your body attacking itself over a crystal it created.