The wildcat is highly parasitised by helminths. Some wildcats in Georgia may carry five helminth species: Hydatigera taeniaeformis, Diphyllobothrium mansoni, Toxocara mystax, Capillaria feliscati and Ancylostoma caninum.
Wildcats in Azerbaijan carry Hydatigera krepkogorski and T. mystax. In Transcaucasia, the majority of wildcats are infested by the tick Ixodes ricinus. In some summers, wildcats are infested with fleas of the Ceratophyllus genus, which they likely contract from brown rats.