You need to seek emergency medical evaluation immediately. The combination of anal swelling, chills, and severe pain—along with dark or orange-colored urine—strongly indicates a serious, spreading infection that requires urgent treatment. There is a risk of a Severe, Deep Infection (Perianal Abscess). Very dark or orange urine can be a sign of severe dehydration from a fever, a side effect of certain medications, or an underlying issue with your liver or kidneys triggered by a systemic infection. Go to an emergency department immediately

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