Family History 

Predictive and presymptomatic testing 
These tests are used to detect gene mutations (alterations) associated with genetic conditions appearing after birth, during childhood, in adolescence or often later in life. The tests can be helpful to people at risk of inheriting a familial genetic mutation but have no features of the condition at the time of testing. Predictive testing can identify mutations that increases a person's risk of developing disorders with a genetic basis, such as certain types of cancer. Presymptomatic testing can determine if an individual will develop a disorder before symptoms appear. The results of predictive and presymptomatic testing can provide important information regarding risks of developing conditions and help with making decisions about future medical care and with planning a family. 
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