Thanks to all of you for the kind words. I love him so much!
His fur beneath and on the edges of the eyes is always in a darker brown colour, I don't think I've ever seen him without it. Even directly after shower, it's straight back to that state.
I didn't check anything about it till now because I was told by a "dog specialist" that it's normal for the breed. Even if it is, I would go to big lengths to remove as much as possible, I think. He'll be even cuter without the tear stains.
I usually clean him before and after work but in that period some crust is formed from all the tears and his fur gets hard where that happens.
He's home alone every day so I can't clean him regularly
Would you say a trip to the vet is in order? I'm making a habbit of bringing him for even the smallest thing. Not once have we been there because he was feeling down, according to me