The researchers conducted a study that particularly aimed to lyse erythrocyte by substituting glacial acetic with kamias fruit (Averrhoa bilimbi L. ) extract. The said experiment was conducted by manual WBC counting using Neubauer counting chamber; the use of kamias fruit extract was considered due to its pH whic is acid in nature, the property that could be seen in glacial acetic acid. The researchers modified various numbers of concentrations so as to determine whether which concentration is effective in lysing the erythrocyte without affecting the WBC. Results indicate that different concentrations of the kamias fruit (Averrhoa bilimbi L.) extract have the capability to lyse the erythrocyte. The alteration of the component glacial acetic acid with kamias fruit extract has the same effect.