my girlfriend has genital warts,the doctor gave her blood test,but she thinks they may be cancerous,why is she waiting four weeks to do a biopsy? and why doesn,t she want me to be tested too? Neither me or my girlfriend have ever had any symptoms before and we been together for a year. how long do you have to have something for the warts to show up.I gave blood four months ago had blood test for my chloresterol and nothing showed up then.my last girlfriend was over five years ago.can you help me?