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What is the most early pregnancy complication, of which 80% occur within the
first trimester?
Spontaneous Abortion
What is the most common reason women miscarry?
Chromosomal errors
Identify some risk factors for spontaneous abortions.
Smoking
Alcohol
Immune factors (recurrent pregnancy loss)
Inherited blood dycrasias (recurrent pregnancy loss)
Excessive caffeine (>500 mg per day)
Environmental exposures
Describe a threatened abortion.
The presence of vaginal bleeding, but the cervical os is generally closed and the uterus
is appropriately sized.
Describe an inevitable abortion.
The cervical os is open, there is increased bleeding with cramping/contractions,
products of conception may be visible at the cervical os.
Describe a complete abortion.