How can I stop my dog's leash aggression when we're on walks?

I'm sorry to hear that your dog is having this problem! Behavior issues like this are quite complex, and often very difficult to handle successfully on your own if you don't have any training experience. And particularly with an aggression problem, it may not be safe to attempt to work on this without professional assistance. If at all possible, I would strongly recommend making an appointment with a veterinary behaviorist who can evaluate your dog in person and help you put together a detailed plan to work on the problem. Although the initial visit may be somewhat expensive, in many cases owners are able to stay in contact with the behaviorist via phone or email about how things are going without the need for repeated in-person sessions - which cuts down tremendously on the long-term cost vs. working with a trainer every week. The behaviorist may also recommend medication or other adjunct treatment options that could be helpful in addition to the training plan. You can search for a board-certified veterinary behaviorist here: www.dacvb.org If your dog is mainly aggressive to other dogs when she sees them on-leash (the most common form of this problem, in my experience), I would also suggest the short book "Feisty Fido" by PhD behaviorist Patricia McConnell - it has very sound, useful advice for dealing with this issue that may help to get you started.

This sounds like leash aggression. I suggest you consult a professional trainer for help but if you want to try on your own here is a link that may help you. ( https://positively.com/dog-behavior/aggression/leash-aggression/ )

This is a case for a professional trainer. I suggest you work with a professional trainer or join a dog club where you can do obedience training with your dog and work on the aggression issues. You can also have your dog evaluated by a veterinary behaviorist who can help you with behavioral modification tips as well as medication if necessary. Here is where you can find a veterinary behavioral specialist: https://www.dacvb.org/search/custom.asp?id=4709

Leash aggression is actually pretty common. When an animal feels threatened or scared they need fight or flight. When they are on leash you have now removed the option of flight so you are way more likely to have a fight reaction and this is why you are noticing this on leash vs. off leash. This is something that needs assistance of a professional trainer, working under the dogs threshold to address the issue. You can see varying amounts of improvement depending on the severity of the case but it's going to take a lot of work and commitment on your part. Please seek help from a qualified professional. Not addressing this issue now will only make it worse and harder to deal with later.

Unfortunately, it's impossible to know how to give you the best advice without being able to observe the dogs. Canine aggression is a complex behavior as it can stem from dominance, possessiveness, fear, anxiety, resource guarding or a combination. Most people are not familiar with reading canine body language and training. Because of this, I recommend to work with a professional trainer. Researching on your own will also be helpful. Familiarizing yourself with canine body language and dog training can help you to recognize what your pet is trying to say. You can find many books written on the topic and there is a trainer named Victoria Stilwell who I think is particularly helpful. Also make sure ALL the animals are spayed and neutered. Animals who are intact are much more likely to fight than pets who are sterilized. Best of luck.

Aggression toward people is a very complex and serious issue so I highly recommend speaking with a veterinary behaviorists near you. A veterinary behaviorist is a vet that specializes in behavior and they are able to work with you on both a training plan, as well as prescribe medications to help with stress or anxiety during training. Most behaviorists can utilize a program such as BAT (Behavioral Adjustment Training) that helps to desensitize your dog to triggers (such as men or the mailman), accept touch or calm handling, and help reduce overall stress and anxiety. They also work with you in person which can help ensure all training is done in a safe manner for both you and your dog. You can learn more about them here: https://www.dacvb.org/page/about

This is a very common problem, and one that is best solved with a trainer or veterinary behaviorist that can help you in person. Leash reactivity can be due to a number of things including fear, lack of socialization, bad experiences, etc, so a trainer that can observe the behavior and get you started on a training plan is best. If Phoebe is also blind in one eye it could be that other dogs are taking her by surprise, leading to the reactivity as well. Most trainers will utilize a technique called BAT (Behavioral Adjustment Training) that involves a combination of desensitization to the stimulus (other dogs on leash) as well as gradually getting your dog used to them from a safe distance at first, until they are gradually calmer and able to handle it. Until you can talk to a trainer, giving other dogs a wide berth and changing up your walks can help prevent any fights or upset from happening. If she does walk past a dog calmly, lots of praise and treats are good as well!