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Signs and symptoms of preterm labor include four or more uterine contractions in one hour. In contrast to false labour, true labor is accompanied by cervical dilation and effacement. Also, vaginal bleeding in the third trimester, heavy pressure in the pelvis, or abdominal or back pain could be indicators that a preterm birth is about to occur.
Pregnancy symptoms may be categorized based on trimester as well as region of the body affected. Each pregnancy can be quite different and many people do not experience the same or all of the symptoms. If a person is concerned about their symptoms they should be encouraged to speak with an appropriate healthcare professional. [1]
In asymmetrical IUGR, there is decreased oxygen or nutrient supply to the fetus during the third trimester of pregnancy due to placental insufficiency. [12] This type of IUGR is sometimes called "head sparing" because brain growth is typically less affected, resulting in a relatively normal head circumference in these children. [13]
Placental abruption defined as the separation of the placenta from the uterus prior to delivery, is a major cause of third trimester vaginal bleeding and complicates about 1% of pregnancies. [13] [50] Symptomatic presentations are variable: Some women can entirely ignore the symptoms, while others have mild bleeding or abdominal discomfort and ...
Most women with this condition present in the third trimester (although it can present as early as seven weeks) with itching without a rash. Typically, the itching is localized to the palms of the hands and soles of the feet, but can be anywhere on the body. Hallmarks of ICP include the following symptoms: [5] Most common:
Fetal warfarin syndrome is a disorder of the embryo which occurs in a child whose mother took the medication warfarin (brand name: Coumadin) during pregnancy. Resulting abnormalities include low birth weight, slower growth, intellectual disability, deafness, small head size, and malformed bones, cartilage, and joints. [1]
If the infection occurs 12–20 weeks after conception, the risk is 20%. Infants are not generally affected if rubella is contracted during the third trimester. [3] Diagnosis of congenital rubella syndrome is made through a series of clinical and laboratory findings and management is based on the infant's clinical presentation.
The frequency depends on criteria and severity, but figures of 2-4% are representative; [45] these symptoms can last for many months. [46] Some avoid further pregnancy (secondary tocophobia), and those who become pregnant again may experience a return of symptoms, especially in the last trimester.