Genetic testing can help determine if you carry a gene mutation responsible for cystic fibrosis. It may be done using blood, saliva, or cheek tissue samples. The American Lung Association estimates ...

Cystic fibrosis is an inherited illness that can be screened for during pregnancy. The test determines whether you have any altered genes that you can pass on to your child. Having the information can ...

DEAR MAYO CLINIC: My husband and I want to expand our family and are trying to get pregnant with our first baby. I've read about family planning couples can do before conceiving and learned about ...