# Kidney Biopsy: Before, During, After

Use your biopsy team’s instructions for preparation, recovery, and medication timing.

![Infographic: Kidney Biopsy: Before, During, After](https://urinenephrology.org/visual-reference/images/patient-kidney-biopsy-what-to-expect.png?v=20261003c)

## Why a biopsy helps

A biopsy removes a tiny sample for examination under a microscope. It can identify the cause of kidney disease and help your team choose or avoid specific treatments.

## Get the hold-and-restart list

Show every prescription, OTC medicine, and supplement to the biopsy team. Ask for written last-dose and restart dates for blood thinners or other medicines. Do not stop them just because a general handout says they can cause bleeding.

## Confirm four things beforehand

Confirm required labs/BP check, fasting instructions, transport home, and the after-hours phone number. Tell the team about allergies or pregnancy. If an instruction is unclear, call before the procedure rather than guessing.

## During the procedure

Imaging usually guides the needle. Local anesthetic numbs the area, and staff explain how to position yourself or briefly hold your breath. The exact approach varies.

## Before leaving, check the plan

Know your activity/lifting limits, medicine restart dates, dressing instructions, and result-review appointment. Recovery restrictions depend on the procedure and your condition. Arrange help at home if needed and follow the center’s written instructions.

## Bleeding signs need prompt help

Seek prompt assessment for worsening flank/back pain, heavy/persistent blood or clots in urine, fever, or trouble urinating. Fainting, severe weakness, or severe breathing difficulty warrants emergency help. Do not wait for the pathology result.

## Source lessons

- [kidney biopsy what to expect](https://urinenephrology.org/patient-handouts/kidney-biopsy-what-to-expect.html)

Read alongside the full lessons; the findings and decisions shown here require the stated clinical context.