I recently noticed some discoloration of the fur on the bridge of my cat's nose. It gets lighter, but it never completely goes away. I'm not sure if he's licking his nose excessively or what could be causing this. I haven't noticed any abnormal cleaning behavior from him. It typically shows up as brown in the morning, and then it fades. Has anyone else experienced this? I'm probably overreacting, but it looks dirty and unhealthy at times, so it worries me.
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