A condition in which the main influencing factor is dibutyl phthalate (DBP), the diester obtained by the formal condensation of the carboxy groups of phthalic acid with two molecules of butan-1-ol. DBP has been used as a plasticizer and as an antiparasitic drug used to treat infestation of parasites on the surface of the body, and is suspected of being an endocrine disruptor and teratogen.