Medical research found that copper deficiency in the body can result in premature rupture of pregnant women. According to the study, is formed by the amnion and chorionic membranes and amniotic membrane with collagen and elastic substance in, they determined the amniotic membrane elastic, brittle and thickness. Collagen and elastin can provide special membranes of elasticity and plasticity. In recent years, with the deepening of understanding on the trace elements, people found that preterm premature rupture of the protection of women\'s maternal serum copper values are below the normal breaking film, shows premature rupture of membranes and low serum copper have a certain relationship. If low copper levels in pregnant women and could easily result in thin membranes, increase in brittleness, flexibility and toughness reduced, premature rupture to occur.
For the prevention of premature rupture of membranes and preterm birth, pregnant women should eat some more food containing high copper content, animal liver, such as nuts, seafood, wheat, dry beans, root vegetables, oysters, and so on.