What are the risks of gonadotropin treatment?
During IVF treatment medications are given to stimulate the reproductive systems. As a result, women are exposed to high levels of estrogen, which the National Institute of Environmental Health Sciences lists as a known carcinogen. But based on current research, scientists say there’s little cause for concern.
• Conceiving multiples is the most common complication of gonadotropin treatment. Of these pregnancies, two-thirds are twins and one-third are triplets.
• Though many couples consider this a blessing, carrying multiples increases risk of miscarriage and other complications.
• During stimulation for natural conception or IUI if three or more follicles are growing to maturity or if blood estrogen exceeds a certain point patients are asked to stop the injections in order to prevent a condition called hyper stimulation.