Lymphatic system disorders:
Blocked or damaged lymph nodes can lead to lymphedema, leading to chronic swelling.
Infections:
Especially if one foot is swollen, painful, and red, it could be an indicator of cellulitis or another infection.
Medications:
Some drugs (e.g., steroids, blood pressure meds, antidepressants) can cause swelling as a side effect.
Pregnancy:
Fluid retention is common, especially in the third trimester, but excessive or sudden swelling can signal preeclampsia.
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