Some preexisting medical conditions can make you more susceptible to complications during pregnancy. Some examples include:
High blood pressure
Pregnant women with chronic high blood pressure are at an increased risk for a low birth weight infant, preterm delivery, kidney damage, and preeclampsia during pregnancy.
Polycystic ovary syndrome (PCOS)
Polycystic ovary syndrome (PCOS) is a hormonal disorder that can cause irregular periods and your ovaries to not function properly. Pregnant women with PCOS have a higher risk of miscarriage, premature delivery, gestational diabetes, and preeclampsia.
Autoimmune disease
Examples of autoimmune diseases include conditions like multiple sclerosis (MS) and lupus.
Women with an autoimmune disease may be at a risk for premature delivery or stillbirth. Additionally, some medication that’s used to treat autoimmune disease may harm the developing fetus.
Kidney disease
Women with kidney disease have an increased risk of miscarriage. Additionally, they should work with their doctor throughout their pregnancy to monitor their diet and medications.
Thyroid disease
Hyperthyroidism (overactive thyroid) or hypothyroidism (underactive thyroid) that isn’t controlled can lead to heart failure or poor weight gain in the fetus as well as birth defects.
Asthma that’s not controlled can lead to an increased risk of poor fetal weight gain and premature delivery.
Uterine fibroids
While uterine fibroids can be relatively common, they can cause miscarriage and premature delivery in rare cases. A cesarean delivery may be required when a fibroid is blocking the birth canal.

If you’ve had five or more previous pregnancies, you’re more susceptible to abnormally quick labor and accompanying excessive blood loss during future labors.
Complications arise in multiple-birth pregnancies because more than one baby is growing in the womb. Because of the limited amount of space and the additional strain multiple fetuses put on a woman, these babies are more likely to arrive prematurely.
Many pregnancy complications, like high blood pressure and diabetes, are more common in multiple pregnancies.
If you’ve had complications in a previous pregnancy, you may be more likely to have the same complication in subsequent pregnancies. Examples include things like a prior preterm delivery, a prior stillbirth, or prior incidence of genetic or chromosomal problems.

Back to Top