The author presents a definition of infection, and discusses the issues of the inflammation and its relation with tumour, and expresses his attitude as to the inflammation states treatment in the aspect of tumours prophylaxis. In modern medical thermodynamics, which successfully replaced the era of molecular medicine, the inflammation is perceived as a phenomenon proving local and/or general states far from physiological hemostatis. In the internal structures, very similar to death of the cells, tumoural self-organisation proceeds, independent of the causes and reasons leading to such extremely unstable dissipathogenic states. Owing to correct histological diagnosis of the vaginal smear, i.e. taking into account hormonal, oncological and inflammation aspects, these states could be anticipated or even report their presences. The inflammation is always evidence that there is a local and/or general insufficiency of the organisms. Infections with bacteria or viruses may, but does not have to lead to the diseases generally referred to as 'infectious' in which an intensity of the symptoms and affections depends on the internal state of the organisms. Clinically, a symptomless course of these events proves that the states far from a balance are maintained, and this is potentially a dangerous situation as additional and even quite weak negative stimulus may shift them into a dissipathogenic original reason of a tumour.