Background: Green tea extracts have shown an interesting influence on human body health. The lead from higher ecological pollution and industrialized usage has become a danger to community health. The existing work aims to scrutinize the histo-physiological changes of green tea extract on the rats’ hearts after treatment with lead nitrates. Methods: The female rats were erratically divided into four groups of six rats. The first control group received distilled drinking water. The second group received treatment with an extract of green tea solution.