What to know about colposcopy

A colposcopy is a medical procedure used to examine the cervix under magnification, usually using certain solutions to help analyse patterns of abnormal cells. A colposcopy is is most often recommended after an abnormal pap smear or positive HPV test, and it helps healthcare providers identify changes in cervical cells that may need further evaluation or treatment. Abnormal bleeding after sexual intercourse is another common referral reason. A vaginoscopy is a similar procedure to examine the vagina under magnification, and vulvoscopy for vulval disease assessment. 

During a colposcopy, the patient lies on an examination chair, and a speculum is inserted into the vagina to allow the cervix to be seen. The clinician then uses a special instrument called a colposcope, which stays outside the body and acts like a binocular magnifying lens, with a bright light.

This allows detailed visualization of cervical tissue. A mild solution, such as acetic acid (vinegar), is applied to the cervix to highlight abnormal cells, which may appear white or have unusual blood vessel patterns. Iodine solution is sometimes used as well, as a second assessment. 

If suspicious areas are identified, the clinician may take a biopsy, removing a small sample of tissue for laboratory analysis. Some patients experience mild discomfort, cramping, or spotting during or after the procedure, especially if a biopsy is performed, but serious complications are rare. The procedure itself usually takes 10 to 20 minutes and does not require anaesthesia.

Colposcopy plays a critical role in cervical cancer prevention. By detecting precancerous changes early, it allows for monitoring or treatment before cancer develops. Not all abnormal Pap results indicate cancer; many reflect temporary changes caused by infections or inflammation. Colposcopy helps clarify the cause and determine next steps.

After the procedure, patients are typically advised to avoid tampons, sexual intercourse, or douching for a short period if a biopsy was taken. Results are usually available within one to two weeks. Overall, colposcopy is a safe, effective diagnostic tool that provides valuable information and reassurance for patients navigating abnormal cervical screening results.