@tidytailsbytoria: Why do some dogs have really bad staining and others have almost none? Firstly you will always notice staining on lighter coated dogs purely because it shows up more in contrast to the lighter hair! The staining is caused by a substance called Porphyrin which is naturally occurring in dogs tears and saliva which contains iron, that's what produces the redish brown colour. For the most part staining isn't anything to worry about but on rare occasions underlying health issues can lead to excess eye watering (eye infections etc) or dribbling (problems with the teeth, gums etc) which causes more staining. Or take arthritis, which makes your dog lick their feet which then causes staining on the feet so if you notice new or increased staining definitely consult your vet! Sometimes it's nearly impossible to get rid of staining completely but by keeping the hair in the area short and wiping daily you can minimise the appearance a lot! #doggrooming #doggroomer #tearstains #doggroomingtips