In reptiles Uromastix get preference to study due to have economic importance as its skin used for making fancy articles, its fat used to cure impotence and used as embrocation etc. Among nematode infections Thelandros genus is common in Uromastix. These parasites mainly affect their flesh, skin and fat bodies. Present investigation includes the effect of these parasites on different biochemical parameters of different tissues including glucose, protein, amylase, lipase, alkaline phosphatase and cholinesterase activities and also nucleic acid level of Uromastix for the first time in Pakistan....