The abortion threat is the presence of metrorragias or uterine contractions in a pregnant woman. In this situation it is necessary to visualize the neck of the womb and to verify that it is closed, rest will be recommended to the woman in bed and abstention of physical efforts. It is necessary to request a Beta-HCG and an obstetric ultrasound scan to discard other pathologies (I embarrass ectópico, mola...) Also allows us to evaluate the viability to ovulate. In any case the pregnancy happens to perform high obstetric risk. If the metrorragia was very important, if remains existed placentarios or the neck was opened, we would be in the presence of a current abortion and the derivation to the hospital must be realized in an urgent way.

To the premature detachment of the plancenta he is named also abruptio placentae and is understood by such that afterbirth that after 22 weeks of gestation and before the third trimester gets rid of his normal implantation. The habitual symptoms are bled vaginal and the painful uterine contractions. In this situation the patient will be sent to a hospital in order to confirm the diagnosis, to value the detachment grade and to do the distinguishing diagnosis with the previous afterbirth that it can study with the same symptoms.

There is considered to be long that pregnancy that lasts more than 42 weeks. His real presence happens in 1-2 % of all the pregnancies, most of the possible long pregnancies they stem from errors in the date of the last rule. If there does not exist a precocious ultrasound scan that allows us to assure the gestation real-time, it will be sent to a secondary level for complementary studies (amnioscopia, amniocentesis, oxitocina test, etc.) that allow us to know the grade of fetal ripeness and decide between continuing the gestation or provoking the childbearing.

Physiologically in the last weeks of gestation it lowers the quantity of amniotic liquid. In practice habitual clinic and in absence of symptoms and clinical signs that do it to us to suspect (pain induced with the fetal movements or the palpación, uterine size lower than the awaited thing, etc.) will be determined by the ultrasound scan, and if it is a few weeks of evolution and at the end of the gestation, in absence of other information it can indicate fetal post-ripeness.

Every 10 minutes are named a premature childbearing to the presence of uterine contractions at least before 37 week of gestation. The gestantes in childbearing risk preterm must be included in a program specific and derived at a specializing level.

Previous afterbirth: This pathology is suspected before the presence of a hemorrhage in the third gestation trimester. It consists of the implantation of the afterbirth in the low segment being able to be marginal, partial or entire. The gestantes with bled in the third trimester have to be a hospital joined for study.

Polihidramnios: It is the presence of amniotic liquid in quantity superior to 2000 ml. It is usually an indicative of fetal pathology or I embarrass gemelar. It is possible to suspect before a uterine size superior to the awaited thing, difficulty to feel the fetus or remote cardiac tones. We obtain the assertion for the ultrasound scan and it will be always sent to a center specialized for his study.

There are all sure antibiotics in the pregnant woman, the FDA classifies them according to the risk as B, that is to say without evidence of fetal risk in human beings and that the studies in animals have not demonstrated risk teratógeno fetal.