It happens when your immune system malfunctions and attacks healthy tissue, making your joints swollen and painful.

这种病是由于免疫系统功能故障、攻击健康组织所致，它会使你的关节红肿疼痛。

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Further complication - lower immune system, bacterial infection, stiff joints, arthritis, lower productivity, and lower nutritional status of their family.

进一步恶化-降低免疫系统，细菌传染，僵硬的关节，关节炎，更低的生产力，和家庭的营养状态降低。

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Patients experience chronic pain and inflammation as a result of the body's own immune system attacking the lining of the joints.

病人遭受慢性疼痛和炎症，作为机体自身免疫系统的一种结果是关节内层的发病。

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In lupus the body's immune system turns on itself and produces "autoantibodies" that attack the joints, skin, kidneys, heart and brain.

FORBES: Magazine Article

Lupus is an autoimmune disease characterized by inflammation of the joints, skin, major organs and central nervous system as the immune system attacks healthy tissues and cells.

FORBES: Lupus Treatment Evades Genentech, Biogen