Com o objetivo de se verificar a preval?ncia das enfermidades causadoras da infertilidade, examinaram-se clinicamente 895 b?falas, procedentes do munic?pio de Cutias do Araguari, Estado do Amap?. Realizaram-se exames ginecol?gicos e testes para detec??o de tuberculose e brucelose, e analisaram-se 1000 pe?as de genitais de b?falas abatidas em matadouro. A preval?ncia de tuberculose e brucelose a n?vel de campo foi de 9,33% e 9,11%, respectivamente. Das 895 b?falas examinadas, 299 (33,41%) encontravam-se gestantes, sendo que 188 (62,88%) no corno direito e 111 (37,12%) no corno esquerdo. No grupo de b?falas com altera??es, foram constatadas os seguintes dist?rbios: a) altera??es ovarianas: ov?rios afuncionais, 75 (8,37%); cisto folicular, 6 (0,67%); b) altera??es no oviduto: ader?ncias focais, 24 (2,9%); ader?ncias difusas, 22 (2,46%); hidrossalpinge, 8 (0,9%); c) altera??es no ?tero e c?rvice: endometrite cr?nica suave, 5 (0,56%); endometrite cr?nica moderada, 7 (0,78%); c?rvice irregular, 14 (2,9%); d) altera??es da vulva e da vagina: vulva dilacerada, 9 (1,1%) num total de 172 (19,21%) vacas com alguma altera??o. Nas an?lises realizadas em matadouro foram evidenciadas 661 (66,10%) animais gestantes, sendo que destes 86 (8,6%) apresentavam alguma altera??o e 339 (33,9%) animais n?o gestantes, sendo 74 (7,4%) com alguma altera??o. Das 661 gestantes, 412 (62,3%) foram do corno direito e 249 (37,7%) do corno esquerdo. As altera??es encontradas foram: a) altera??es ovarianas: ov?rios afuncionais, 16 (1,6%); cisto para-ov?rico, 5 (0,5%); cisto de inclus?o epitelial, 8 (0,8%); cisto folicular, 1 (0,1%); b) altera??es da tuba uterina: hidrossalpinge, 18 (1,8%); cisto tubo-ov?rico, 5 (0,5%); ader?ncias focais, 70 (7,0%); ader?ncias difusas, 21 (2,1%); c) altera??es do ?tero e c?rvice: endometrites, 9 (0,9%); perimetrite, 3 (0,3%); adenomiose, 1 (0,1%); aplasia segmentar do ?tero, 1 (0,1%); gesta??o gemelar, 1 (0,1%); c?rvice irregular, 1 (0,1%). A maior porcentagem de fetos estavam no ter?o final da gesta??o com 236 (35,65%) casos. Pode-se concluir que in?meros s?o os problemas que podem afetar a fertilidade das b?falas e que cabe uma identifica??o destes para resolver problemas de produtividade do rebanho. ; ABSTRACT: Objecting to find out the prevalence of infertility diseases, 895 buffalo cows were submitted to clinical examination with main emphasis on the gynecological aspects and tuberculosis and brucellosis tests, located in Cutias do Araguari country, Amap? State, and analyzed 1000 genitals slaughtered buffalo cows. The prevalence of tuberculosis and brucellosis on clinical analysis were 9,33 and 9,11% respectively. On 895 clinical examined buffalos cows, 299 (33,41%) were pregnant, 188 (62,88%) on the right horn and 111 (37,12%) on left horn. On the buffalo cows group with some alteration, were discovered the following disorders: a) abnormal ovaries: non-functional ovaries, 75 (8,37%); follicular cysts, 6 (0,67%); b) oviduct abnormalities cases: slight adhesions, 24 (2,9%); severe adhesions, 22 (2,46%); hydrosalpinge, 8 (0,9%); c) uterine and cervical abnormalities cases: slight chronic endometrititis, 5 (0,56%); moderate chronic endometritis, 7 (0,78%); irregular cervix, 14 (2,9%); d) Vaginal and vulvar abnormalities cases: lacerated vulva, 9 (1,1%); totalizing 172 (19,21%) buffalo cows with some abnormalities. On the slaughtered buffalo cows were evidenced 661 (66,10%) of pregnancy buffalo cows, that 86 (8,6%) with some reproductive disorder and 339 (33,90%) not pregnancy buffalo cows with 74 (7,4%) with some reproductive disorder. In 661 pregnancy, 412 (62,3%) were in right horn and 249 (37,7%) on left horn. The reproductive abnormalities found were: a) ovarian abnormalities cases: non-functional ovaries, 16 (1,6%); para-ovarian cysts, 5 (0,5%), epithelial inclusion cysts, 8 (0,8%); follicular cysts, 1 (0,1%); b) oviductal abnormalities cases: hydrosalpinge, 18 (1,8%); tubo-ovarian cysts, 5 (0,5%); slight adhesions, 70 (7,0%); severe adhesions 21 (2,1%); c) uterine and cervical abnormalities: entometritis, 9 (0,9%); perimetritis, 3 (0,3%); adenomiosis, 1 (0,1%); segmental aplasia of uterus, 1 (0,1%); twining, 1 (0,1%); irregular cervix, 1 (0,1%). The major percentage of fetus were found on final third of gestation with 236 (35,65%) cases. Several are the problems that can affect the fertility of buffaloes cows and we need to identify it to solve the problems of productivity.