Specific age groups, persons who participate in risky sexual behavior, or those have certain health conditions may require screening. The CDC recommends that<unk>  active women under the age of 25 and those over 25 at risk should be screened for chlamydia and gonorrhea yearly. Appropriate times for screening are during regular pelvic examinations and preconception evaluations. Nucleic acid amplification tests are the recommended method of diagnosis for gonorrhea and chlamydia. This can be done on either urine in both men and women, vaginal or cervical swabs in women, or urethral swabs in men. Screening can be performed: * to assess the presence of<unk>  and prevent tubal infertility in women * during the initial evaluation before infertility treatment * to identify HIV<unk>  * for men who have sex with men * for those who may have been exposed to hepatitis C * for HCV
Sexually transmitted infection
Interstitial cystitis
Vertically transmitted infection
Neurodegenerative disease
Blood-borne disease
Environmental disease
Secondary trauma
Psychogenic disease