Why can contractions return a responsibility
summary
Uterine contraction is a very common phenomenon. There are many reasons for uterine contraction. The common reason is that the fetal head is not right, when it enters the pelvis, it is asymmetric, or sometimes it is because the fetal position is abnormal. There are also factors of the uterus itself, the maternal's own spirit, and the maternal's own body The endocrine disorders, there is also the effect of drugs will lead to uterine inertia, in fact, uterine inertia is divided into primary and secondary.
Why can contractions return a responsibility
First: if it is primary uterine atony, that is, the uterine orifice can not be as normal as the normal birth, can not be normal expansion, and then this will lead to the fetal fetal dew can not be normal decline, so the birth time will be longer, but if it is in the process of birth.
Second: then I don't know what factors lead to uterine atony or weakening of uterine contraction, so that the time of giving birth will be longer. This is secondary uterine atony, but there are many reasons for uterine contraction. The most common one is abnormal fetal position.
Third: there are also causes of uterine atony, which are the uterus's own factors. For example, those who have given birth to a lot of babies, or have too much amniotic fluid, or have huge babies, etc. These can lead to excessive elongation of uterine muscle fibers, or 'uterine malformation'.
matters needing attention
There are more and more reasons for uterine atony, but now the most common is that the fetal position is not normal, or the fetal posture into the pelvis is not right, and there are mental factors, which also lead to uterine atony.