DNA test for Maltese tear staining & eye genes

Tear staining in Maltese is one of those issues that sits right at the crossroads of genetics, anatomy, and environment — so I can see why you'd want to dig into the DNA side of things. Pet DNA tests have come a long way: for dogs especially, breed composition is solid, and the better kits do screen for some genuinely useful health markers including traits linked to pigmentation and eye conditions. That said, the health panels vary a lot between providers, and a DNA result won't diagnose what's causing your dog's staining right now — that still needs a vet. Are you mainly after the genetic and trait information, health screening, or both? And is your Maltese a purebred or do you suspect any mix in there?

That's really helpful context. A lifelong staining issue in a Maltese almost certainly has a structural or genetic component — possibly shallow tear ducts, pigmentation quirks, or porphyrin sensitivity — rather than being something you've done wrong. Given that she's nine and purebred, breed ID isn't what you're after. What you want is a test with decent trait and pigmentation markers plus a solid health panel. Can I ask: has a vet ever scoped her tear ducts or tested for blocked nasolacrimal drainage? I'm asking because a DNA result will tell you about predispositions, not about whether a duct is physically blocked — those are different answers.

Perfect — that actually makes a DNA test quite well-suited to what you need. For a nine-year-old Maltese where the anatomy is already understood, the value is in the trait markers around pigmentation and coat, some eye-related condition risks, and the broader health screening that's worth having for a senior dog. My recommendation is the Embark Breed + Health Kit. It's the most comprehensive consumer dog DNA test available in the UK — it screens over 230 health conditions including some eye disorders and pigmentation-linked conditions, and it includes trait markers covering coat colour pathways and pigment expression. For a Maltese specifically, the pigmentation gene breakdown is actually quite interesting because white-coated dogs have distinctive pigment genetics that can relate to tear porphyrin staining patterns. It won't give you a clinical diagnosis, but it will give you a genetic profile worth discussing with your vet, especially for ongoing senior health monitoring.

It's straightforward — cheek swab, register the kit online, post it back, and results come through in three to four weeks with a detailed online dashboard. Embark ships to the UK and is available through Amazon UK, which is the most reliable way to get it here. The results portal is genuinely good — you can share a health report PDF directly with your vet, which is worth doing at her age so they have the genetic context alongside her clinical history. For a senior Maltese with a long-standing eye issue, having that genetic record is actually quite useful going forward.

Really glad it helped. The Embark results often surprise people even when they think they know their dog well — and for a nine-year-old, having that health baseline documented is genuinely worthwhile beyond the tear staining question. Hope it gives you some useful answers.