Involution is a process in which the process of realization or advancement of something stops. Involution could be considered to be the antonine or opposite of evolution. The term is used in three essential fields of society, the administrative, the health and the scientific. In the administrative field, there are many procedures that involve the implementation of mechanisms linked by a chain of command or operations, this guarantees the proper functioning of the realization of the final product, but when a link in this chain stops or becomes desynchronized, the factory stops In this aspect, the involution is of the blocking type, since it stops the process, however it does not retract. When the problem item resolves, the process is returned to its course.
In terms of health, an involutional process implies that the studies, treatments and operations that have been carried out on a patient do not generate the expected effects, even worsening the symptoms, here if there is an involution that delays the chain of objectives. When we hear "The patient has not evolved satisfactorily in the fight against the disease" there is a regression in the patient's health. The reproduction mechanism of a woman is surprising, when the fetus leaves the mother's womb, it begins to retract, to return to its normal size, this symptom is called uterine involution. The term is also applied to the reduction of bumps on the body.
In the scientific field, when studies of the subject are carried out, and the results are negative or do not follow the expected course, they are considered involutive.