The hissing of a beloved pet discourages its owners.
But there is a reason for this. A cat never hisses without a special reason.
Experts identify a number of reasons why an animal might make this sound.

First of all, the pet may simply be afraid of something. In this case, it will be a completely natural reaction.
Fear of the unknown also makes the cat make this aggressive sound.
These pets are also known for their desire to protect their territory. An attempt to scare off a stranger involves a number of measures, including hissing.
Some cats use this sound as a way to prevent a more serious conflict. The pet shows that it is ready for a fight, but it is better not to let it come to that, otherwise it will be bad for everyone.
Sometimes an animal can show in this way that it is tired of excessive attention to its person and wants to be alone.
Hissing may be a sign of the cat trying to maintain its authority as a strong and dangerous animal that must be reckoned with.
Some breeds are so active that they release some of their irrepressible energy in this way.
Cats can also use hissing to communicate with each other.
Hissing can trigger a negative memory or action that the owner reminded of.
Sometimes a pet can harbor anger towards someone stronger. There is nothing he can do about it, so he takes it out on the weaker ones.
Pregnant cats may have hormonal changes, which is why they hiss quite often.
They exhibit the same behavior when their maternal instinct is triggered.
Pain and discomfort can also easily provoke a cat to start hissing to show the full extent of its indignation and discontent.