What Does An Endocervical Swab Test For?
What Does An Endocervical Swab Test For? An endocervical gram stain checks for abnormal bacteria in or around the cervix. Your doctor may also perform this test if they suspect you have an STI. An endocervical gram stain can detect STIs such as: gonorrhea, which is a common STI with painful urination and abnormal discharge.