Depression

Dogs cannot speak. Even if their physical and mental states undergo changes similar to those of human depression, it is often difficult for their owners to detect them. Most people just think that the dog has grown up and its personality has become calmer.

Obsessive-compulsive disorder

For dogs, the manifestations of obsessive-compulsive disorder may not be so intuitive, but obsessive-compulsive disorder is a frequently mentioned animal psychological abnormality and is easily noticed and recognized by owners. Although the symptoms displayed by each dog are different, they all have the same characteristic, which is to repeat an action or behavior aimlessly. Dogs sometimes repeat the same action all day long, even without eating, drinking or sleeping. In extreme cases, they can cause serious self-injury to themselves. In fact, it is a mental illness that urgently needs treatment.

Anxiety Disorders

Anxiety and fear are themselves very pro-survival emotions. When a dog encounters danger, these emotions can keep it alert and alert and avoid danger as quickly as possible. Some dogs still show anxiety and fear even when there is no threat, which will have many negative effects on their lives. The most typical example is separation anxiety in dogs.

Hypotheses

Some dogs will be overly afraid of specific things, such as cars, firecrackers, or even small balls, toys and other seemingly harmless items. This is not necessarily because they have been stimulated. Just like people who are afraid of snakes may not have actually been bitten by snakes, the specific reasons for dogs' fear are difficult to trace.