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Every dog owner deals with behavior problems at some point. Your shoes get chewed, your neighbors complain about barking, or your dog nearly pulls your arm off on walks. It's frustrating, but it's also fixable. Most behavior issues aren't signs of a "bad dog" — they're signs of a dog who hasn't been shown what you want instead.
The five problems below are the ones I see most often in my training practice. Each one has a clear cause and a proven solution. If you're dealing with one of these right now, you're in the right place. And if you haven't started basic training yet, our guide on basic obedience commands is a good place to begin.
Excessive Barking
Dogs bark. It's how they communicate. But when the barking goes on for minutes at a time, multiple times a day, something needs to change. The first step is figuring out why your dog is barking. Boredom, anxiety, territorial behavior, and excitement all produce barking, but the fixes are different for each one.
Boredom barking is the most common. Dogs who spend long hours alone with nothing to do bark because they've got nothing else to do. More exercise solves most of these cases. A 30-minute walk before you leave for work, a puzzle feeder, and a rotation of chew toys can cut boredom barking in half within a week.
Alert barking — reacting to sounds outside the door, people walking past the window — is trickier. Teach a "Quiet" command by waiting for a brief pause in the barking, saying "Quiet," and treating. Your dog learns that silence earns the reward. Managing the environment helps too: close blinds, use white noise, and block visual triggers.
Separation anxiety barking requires a different approach entirely. Dogs with true separation anxiety panic when left alone. They may bark, howl, destroy things, or have accidents even if they're otherwise housebroken. Gradual desensitization — practicing short absences and slowly building duration — is the gold standard treatment. For severe cases, working with a veterinary behaviorist is worth considering.
Chewing and Destruction
Chewing is a natural behavior for dogs. Puppies chew to relieve teething pain, and adult dogs chew to keep their jaws strong and their minds occupied. The problem isn't that your dog chews — it's that they chew the wrong things.
Prevention is the fastest fix. If your dog destroys shoes, don't leave shoes where they can reach them. Baby gates, closed doors, and elevated storage solve a lot of problems before they start. While your dog is learning what's acceptable, you need to manage the environment so they don't have the chance to rehearse the wrong behavior.
Provide a variety of chew toys — rubber toys, nylon bones, rope toys, frozen Kongs. Rotate them every few days so they stay interesting. When you catch your dog chewing something inappropriate, calmly take it away and swap it for an approved item. Praise them for chewing the right thing. Consistency from every family member is critical here.
If your adult dog suddenly starts chewing destructively when they haven't before, rule out medical issues first. Dental problems, anxiety, and dietary deficiencies can all trigger increased chewing. A vet visit is a smart first step. For puppies, destructive chewing is almost always age-related and peaks around 4 to 6 months during teething. Our puppy training guide covers chew management in more detail.
Jumping on People
Dogs jump because they want attention. When they were tiny puppies, jumping up got them face-level with humans — and most people responded with eye contact, talking, or pushing them away. All of those are attention, and attention reinforces jumping. Your dog learned that jumping works.
The fix is to make jumping stop working. When your dog jumps, turn your back, cross your arms, and say nothing. Don't push them off — that's still interaction. Don't say "No" or "Down" — that's still attention. Just become boring. The moment all four paws are on the floor, turn back around and give calm praise or a treat.
Teach an incompatible behavior. A dog who's sitting can't jump at the same time. Ask for a sit before your dog has a chance to jump — when you walk in the door, when guests arrive, before they get their food bowl. Over time, sitting becomes their default greeting behavior because it consistently earns what they want.
Get your friends and family on board. If you're ignoring jumping but your spouse is petting the dog while they jump, you're fighting a losing battle. Everyone who interacts with your dog needs to follow the same rules. Post the rules on the fridge if you have to — no attention for paws off the ground, praise for four on the floor.
Leash Pulling
Leash pulling is one of the most common complaints I hear, and also one of the most straightforward to fix — if you're consistent. Dogs pull because they've learned that pulling gets them where they want to go. Every time your dog pulls and you follow, you've just taught them that pulling works.
The "be a tree" method is simple and effective. The instant the leash goes tight, stop moving. Plant your feet and wait. Don't yank back, don't say anything, just stand still. Eventually your dog will look back at you or create slack in the leash. The moment that happens, mark it with a "Yes!" and start walking again.
In the beginning, you'll stop every two steps. It's tedious. But within a few walks, your dog starts to understand: a loose leash means forward movement, a tight leash means we're going nowhere. You're teaching them that they control the walk through the leash, and only a loose one gets them moving.
Change directions frequently during training. If your dog surges ahead, turn 180 degrees and walk the other way. They learn to pay attention to where you're going instead of charging forward on their own agenda. Reward every moment your dog walks beside you with a loose leash — treat, praise, or just the reward of continued forward movement. The AKC walks through loose-leash training techniques in more detail if you want additional methods to try.
Aggression
Dog aggression is the issue that scares owners the most, and understandably so. But aggression is almost always rooted in fear, frustration, or a lack of socialization — not dominance or meanness. Understanding the cause is the key to fixing it.
Reactivity — barking and lunging at other dogs or people on walks — is the most common form. It looks aggressive, but many reactive dogs are actually afraid or over-excited. They've learned that barking and lunging makes the scary thing go away (the other dog eventually passes by). Counter-conditioning changes the emotional response by pairing the trigger with high-value treats at a safe distance.
Resource guarding is another common form. Dogs who growl when you approach their food bowl or toy are protecting something they value. The fix involves teaching your dog that your approach means better things are coming — walk by their bowl and drop a piece of chicken, then walk away. Over time, they start looking forward to your approach instead of guarding against it.
True aggression — repeated attempts to bite with intent to injure — needs professional help. This isn't something to work through with YouTube videos alone. The ASPCA strongly recommends consulting a certified applied animal behaviorist or veterinary behaviorist for serious aggression cases. A qualified professional can assess the situation in person and design a safe, effective behavior modification plan.
Whatever behavior problem you're facing, remember this: your dog isn't trying to give you a hard time. They're having a hard time. Approach every problem with patience and curiosity about what's driving the behavior, and you'll get to a solution faster than you think.
