“…In conclusion, while endoscopic hydrotubation of the oviduct with saline may be beneficial in some cases of unexplained infertility in the mare, structural abnormalities of the oviduct which may be related to infertility, such as hydrosalpinx [32][33][34], and salpingitis [32,35] associated with abnormal development or adhesions have also been reported. In these and other cases of oviductal abnormalities, laparoscopy can be a useful additional diagnostic aid [31], whereas these abnormalities would not be appropriate candidates for the present treatment.…”