The two terms are related to cervical pathologies.
Colposcopy is a diagnostic technique that consists of examining the cervix with a microscope after having applied different dyes and stains. In this way it is possible to locate the existence of a specific lesion and biopsy it for an accurate diagnosis.
Conization is a surgical treatment for premalignant lesions diagnosed in the cervix. It is the exeresis or removal of margins of the entire altered area of the cervix, which has been previously diagnosed by colposcopy.