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Reasons Why Your Dog May Be Acting Weird

Dogs can have many strange behaviors which make us wonder, “Why do they do it?”.

If you know your pet well, you will quickly notice when it starts acting weird. This could cause concern for you because many behaviors are due to stress, anxiety, or potentially serious health problems.

Reasons Why Your Dog May Be Acting Weird

While certain behaviors are typical for these animals, there are some that you should take seriously. For that reason, you have to do good research on that particular behavior and what to do to help your pet.

Fortunately, you’ll learn the reasons why your dog might be acting weird in this article.

Strange Behavior in Dogs

Keep in mind that any behavior different from how your dog acts daily will be considered strange. You must consider this since perhaps some of the behaviors we will explain below are common in certain canines.

Therefore, it is essential to know some of them before knowing why these animals act weird.

Your Dog Barks Excessively

Some dogs tend to bark more than others, but without a doubt, when a canine begins to bark excessively more than it usually does, it is because something strange is happening.

Excessive barking is considered strange behavior when the canine constantly barks throughout the day for no reason. Generally, anxiety, stress, boredom, or some health problem could be the cause of this behavior.

Your Dog Is Hiding

It is very rare when a dog hides from its owner. While some dogs are naturally fearful, they don’t often hide from their loved ones due to their strong bond and trust.

If your dog suddenly starts hiding without showing this behavior in the past, then something is wrong, and you need to find out why.

Your Dog Trembles

It is not normal for a dog to tremble frequently. This situation may be due to a health problem such as:

  • Kidney disease
  • Canine distemper
  • Generalized tremor syndrome

Your Dog Licks Its Paws

It is normal for a dog to lick its paws from time to time to scratch itself or remove any momentary discomfort. However, if you notice this behavior frequently in your pet, it is most likely caused by a parasite or allergy.

Your Dog Becomes Aggressive

If your dog has always been affectionate with you but becomes aggressive from one moment to another, you should be concerned. It is not normal for a dog to behave aggressively towards its loved ones.

If that happens, you should identify the source of this problem as it could be due to an injury, traumatic situation, threat, etc.

Your Dog Rubs Its Butt on the Ground

Just like humans need to scratch certain parts of their bodies, dogs also feel the need to scratch their butts. The only way to do this is by rubbing it into the ground.

This behavior should not be frequent; otherwise, we can say that the canine has a problem in the anal sac due to an injury or obstruction.

Why Is My Dog Acting Weird?

Gastrointestinal UpsetDietary indiscretion, pancreatitis, intestinal parasites, dietary changes, intestinal obstructions, and chronic diseases.
Stress and AnxietyExposure to new people or places, moving to a new house, changes in its diet, and loud noises.
AllergiesFood and particles in the environment.
Ear InfectionsBacteria, fungi, and mites.
Anal Gland ProblemsLack of emptying of the anal glands, changes in diet, intestinal diseases, and lack of fatty acids and fiber.
PainPancreatitis, joint problems, infections (ear, skin, urinary, etc.), etc.
FearLoud noises, strange people, thunderstorms, fireworks, etc.
Reasons Why Dogs May Act Weird Along With Their Causes

In the table above, we have seen the most common reasons why dogs may act weird along with their causes. Now we will delve a little more into them so that you know these problems in a general way.

Gastrointestinal Upset

This problem can be extremely uncomfortable for the dog, depending on the severity of the situation. This problem can cause strange behavior in the canine that any owner will notice immediately.

A dog with gastrointestinal upset may exhibit the following symptoms:

  • Diarrhea
  • Vomiting
  • Whining
  • Shivering
  • Lethargy

Stress and Anxiety

Although many people do not believe it, dogs can suffer from anxiety and stress just like humans. As we have already seen in the table, several situations can cause tension in these animals.

A stressed dog can develop strange and destructive behaviors such as excessive barking and whining, trembling, urinating and defecating anywhere in the house, scratching doors and walls, chewing on furniture, etc.


Dogs are exposed to allergies anywhere, either by eating something or simply by exposure to particles and microorganisms in the environment, such as mold, pollen, dust, etc.

Allergies in humans are often irritating, uncomfortable, and sometimes unbearable. In dogs, that is no exception. It is essential to know the symptoms of a dog with allergies:

  • Fur loss
  • Itching
  • Concern
  • Gastrointestinal upset
  • Eye redness

Ear Infections

Ear infections are very painful. Identifying infections of this type in dogs is challenging since they usually occur internally, and we will only notice them when their ears are swollen and red.

A dog will start rubbing its ears on the ground, whining, shaking its head, or trembling when it has an infection or discomfort in its ears.

Anal Gland Problems

Anal gland problems are more common in certain breeds of dogs than others. A canine could experience discomfort when the glands are not emptied, causing them to fill with fluid during each bowel movement, triggering a lot of pain.

Dogs with these types of problems often whine and rub their bottoms on the ground.


Pain is one of the main reasons dogs act weird. Pain can be caused by many things, such as injuries, wounds, or diseases.

When a dog is in a lot of pain, it will begin to bark excessively and may even become aggressive. Moaning, lethargy, and loss of appetite are also other symptoms.


Although some dogs are more skittish and fearful than others, we must bear in mind that they can have phobias. Just as a person has a phobia of clowns, dogs are afraid of the sounds of sirens, thunderstorms, or fireworks.