Causes of infertility in bitch.

The dog is considered as an important companion animal. The dogs perform a significant role in different departments also. For example police assistance, murder cases and identification of addicted medicines at airports. These functions can be performed only by healthy dogs. The infer - tility adversely affects the health of female dogs. The infertile bitches are unable to produce healthy and live puppies. The fertility of bitch requires the normal estrus cycle and ovulation within the reproductive tract followed by the union of sperm. The developed embryo must implant in the en - dometrium of uterus till the completion of pregnancy period and successful parturition. There are many causes responsible for the infertility in female dog. The common categories of infertility are structural, physiological, neoplasm and infectious agents. The objective of this review was to high - light the emerging causes of infertility.