The present work was conducted on thirty twobitches classified as immature, mature and senile females. In the immature bitches the (paraurethral) prostate gland could be described as small dorsoventrally compressed compact organ has paraurethral localization just below the urinary bladder. The gland appeared as compound tubuloalveolar exocrine gland consisted of few stroma and ill developed parenchyma. In the mature females the paraurethral gland acquired larger size. The fibrous stroma became thicker formed of dense collagen bundles intermingled with small muscle fibers in the capsule, septa or even around the individual secretory alveoli and collecting ducts. The parenchyma showed well developed highly active secretory alveoli lined by high columnar secretory cells and the cytoplasm showed strong apical acidophilic affinity and contained well developed granular endoplasmic reticulum as well as numerous large round mitochondria. Both the secretory alveoli and the collecting ducts were surrounded by elongated curved cells with flattened slender-like darkly stained nuclei. The secretory cells were also characterized by the presence of a huge number of characteristic secretory granules. The senile paraurethral (female prostate) still large in size with lesser activity. The fibrous stroma showed progressive increase in thickness on the expense of the secretory alveoli which became greatly regressed and many of them were collapsed.