women s health issues
Cervical Insufficiency
Causes of Cervical Insufficiency
What causes the cervix to be weak is not well-understood. It may involve a combination of structural abnormalities and factors such as infection. Conditions that increase the risk of having a weak cervix (risk factors) include A connective tissue disorder present at birth (congenital), such as Ehlers-Danlos Syndromes None An injury to the cervix Female Genital Defects , including müllerian duct defects (for example, a uterus that is not shaped normally) Two or more previous miscarriages during the 2nd trimester The cervix may be injured during a previous delivery. It may also be injured when a large piece of tissue is removed from the cervix for a biopsy (called a Biopsy ) or when cervical cancer is treated. Most women with cervical insufficiency do not have any of the above conditions. 