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The incidence of galactophagia (self and intersuckling vices in dairy animals) may lead to great loss in milk production, injuries and shape defect in teats as well as serious mastitis which reflect on general health condition of animals. Our field survey was carried out to spot the light on the relationship between galactophagia (self or intersucking), breed, housing system and parity on some productive, reproductive traits and udder health condition in dairy cows and buffaloes. The results revealed that, the average milk losses due to these vices reached to (33.42±0.51, 36.35±0.60 and 24.70±0.78% of the total milk yield) for Holstein-Friesian, Baladi cow and Buffalo, respectively. Not only the amount of milk production decreased, but also the lactation period decreased significantly (P< 0.01) while, days open and calving interval (CI) increased significantly (P< 0.01). The incidence of self and intersucking could be a main cause of mastitis, which occurred more frequently in forequarters than hind quarters in suckled animals. In conclusion, self and intersucking considered as great economic problems in dairy cattle and buffaloes not only due to milk loss, but also other productive and reproductive traits in the herd and can cause serious mastitis.