Abstract: The reproductive conditions and requested procedures encountered in dogs in Southwestern Nigeria were surveyed using the clinical records of the state veterinary hospitals and some private veterinary clinics from January 1999 to December 2008 in order to document and compare their prevalence’s. The most frequent reproductive conditions and requested procedures of dogs encountered were: requests for orchidectomy 33.0%, Transmissible Venereal Tumor (TVT) 10.1%, requests for pregnancy diagnosis 8.1% and oestrus detection 6.1%, mastitis 5.3%, abortion 4.5%, urogenital tract infection 4.1%, orchitis 3.4%, metritis 3.3%, dystocia 2.9% and infertility 1.6%. The female dogs were presented with significantly more reproductive conditions and requested procedures (54.1%) than the male dogs (45.2%) and missing data (0.7%) (p<0.05). The breeds of dogs presented at the clinics and the distribution of the reproductive conditions and requested procedures were: Alsatian 27.4%, Rottweiler 2.3%, Nigerian local dog 28.0%, Bull Mastiff 0.4%, Pit bull 0.5%, Terrier 0.2%, Doberman 0.2%, Crossbreds 6.7, Great Dane 0.3%, Boxer 0.2%, Boer Bouele 0.3%, Labrador 0.1% and missing data 34.4%. The prevalence of diseases of reproduction and requested procedures did not follow any specific pattern during the period studied but the highest prevalence was recorded in year 2008 due to problems with record keeping in some states. Sequel to the results above, veterinarians in this region of country are therefore, warned and prepare of possible increase in the prevalence of diseases of reproduction and requested procedures due to increase in the importation of exotic breeds of dogs.