The term aversion is one that is used to refer to a negative feeling that a person may have about another person, an object, a situation, etc. Aversion, unlike other negative feelings, is based on a certain irrationality or a certain lack of control that the person has over that feeling. In reality, most negative sensations or feelings hide a certain irrationality or work on the mind at an unconscious level, so it is not easy, as in the case of aversion, to fully decipher what they are due to. The idea of aversion differs, for example, from the idea of repudiation since the latter is usually related to a certain conscious choice of the person about the object that generates discomfort (for example, when people who mistreat animals are repudiated). However, aversion already gives us an idea of an internal feeling that the person does not know or can explain well and cannot control, which is why it arises every time the object of dislike in question is thought about.
Aversion is a type of feeling that is very difficult to explain in rational terms and this is what makes it so difficult to solve in those cases in which it presents real complications for the person. All individuals present to a greater or lesser extent some degree of aversion destined towards something or someone: some food, some insect, some type of personality, some act or circumstance, etc. This does not necessarily mean that the person cannot normally live with that aversion.
However, there are cases in which this aversion is inexplicable and the person cannot effectively control his feeling of discomfort or disgust, for which he is confronted with suffering or avoiding situations in which that object of aversion appears. In many cases, the aversion can turn into an obsession or mania and seriously make life difficult for a person.