What should you know about cone knife biopsy?

It is also called cold-knife conisation. It is usually performed in an operating theatre using anaesthesia and may sometimes remove the entire abnormal area as well as provide a diagnosis.

The clinician uses a surgical blade to take tissue from the outer cervix and cervical canal. A pathologist examines the cell type, depth of any abnormality and the edges, called margins. Margin findings help the care team decide whether observation, another procedure or cancer treatment should follow.

Light bleeding, watery or dark discharge and period-like cramps can follow. Healing takes time, and the individual discharge instructions take priority because the extent of tissue removal and personal health differ.

Tell the team about pregnancy, medicines, allergies and any bleeding disorder. Follow fasting and medication instructions for the planned anaesthetic, and arrange transport home if sedation or a general anaesthetic is used.

During recovery, use pads rather than tampons and avoid vaginal sex, swimming and strenuous activity until the clinician says the cervix has healed. Keep the result appointment even if symptoms settle, because decisions depend on the laboratory report rather than recovery symptoms.

Seek urgent medical advice for heavy bleeding, clots, worsening pelvic pain, fever, faintness or discharge with a strong unpleasant smell. Severe bleeding, collapse, breathing trouble or rapidly worsening illness warrants emergency care.

Contact the procedure team if bleeding begins again after it had settled or if you are unsure whether the amount is expected. They can assess for infection, delayed bleeding or another cause.

Ask why a knife cone is preferred over another biopsy method, what anaesthesia is planned, when results should arrive and what the margin findings mean. If future pregnancy matters to you, discuss how removal of cervical tissue could affect pregnancy monitoring and whether this changes the recommended approach.