Pug pulling on lead with tracheal issues

A Pug with confirmed tracheal sensitivity changes things significantly — any pressure on the neck is off the table, so you're right to look for a collar-free solution. For pulling dogs, no-pull harnesses and head collars are usually the go-to options, but head collars are out here too given the tracheal issue, so we need a well-fitted front-clip harness that redirects without putting any strain on the throat. The fit is everything with brachycephalic breeds — they have a very different chest and neck shape to most dogs. Can you tell me how strong the pulling is — gentle drift or full freight-train? And has he worn any harness before, or are we starting from scratch?

That makes complete sense — back-clip harnesses actually give dogs better leverage to pull, so they often make things worse. A front-clip harness changes the physics entirely: when he lunges forward, the leash attachment point on his chest turns him back toward you rather than letting him power ahead. Given his tracheal sensitivity and the stocky Pug build, I'd point you to one specific harness. What's his rough weight? Pugs vary quite a bit, and getting the size right on this one is critical.

Perfect, that helps a lot. My recommendation is the Ruffwear Front Range Harness. It has a front clip on the chest for steering and a back clip for when he's walking calmly — so you get the anti-pull benefit without any throat contact whatsoever. The padded chest panel distributes pressure across the sternum and ribcage, which is exactly what you need for a dog with tracheal sensitivity. Crucially, it has two adjustment points across the chest and belly, which makes it far easier to get a proper fit on a broad-chested Pug than most harnesses. At 9kg he'll likely be a Small — but measure his chest girth and check Ruffwear's sizing chart before ordering, because the fit has to be snug with no gap at the front clip or it loses effectiveness.

Honest answer: the harness makes pulling physically less rewarding and gives you much better control, but it's a management tool rather than a cure. For a five-year-old Pug who's been pulling his whole life, you'll get the best results pairing it with stop-start training — every time he hits the end of the lead, you stop completely and wait until the lead goes slack before moving again. It's slow at first but Pugs respond well to it because they're food-motivated. The harness just means you're not fighting a losing battle with a collar while you work through it, and there's zero risk to his trachea in the meantime.

Two things to watch with Pugs. First, the chest strap should sit low on the sternum — not up near the throat — so check that it hasn't ridden up after the first few walks and readjust if needed. Second, because Pugs can overheat and already have compromised airways, make sure the harness isn't so snug that it restricts chest expansion at all; you should be able to fit two fingers under every strap comfortably. Give it a short five-minute trial walk before committing to anything longer, just to make sure he's moving freely and isn't showing any signs of discomfort. Once it's dialled in properly it's a really good fit for the breed.