Paracentesis: What to Expect
A complete guide to the procedure that drains excess fluid from your abdomen—preparation, what happens, and recovery.
Paracentesis is a procedure to remove excess fluid (ascites) that has accumulated in your abdomen. It provides relief from discomfort and can help with diagnosis. Understanding what to expect can ease anxiety about the procedure.
Why Is Paracentesis Needed?
Therapeutic
Remove large amounts of fluid to relieve pressure, improve breathing, and reduce discomfort.
Diagnostic
Collect a fluid sample to test for infection, cancer cells, or other conditions.
Common Causes of Ascites
- Liver cirrhosis (most common)
- Heart failure
- Cancer
- Kidney disease
- Infection
The Procedure Step by Step
Positioning
You'll lie on your back or slightly tilted. The doctor uses ultrasound to locate the fluid and find the safest entry point.
Numbing
Local anesthesia numbs the skin and tissue. You may feel a brief sting, then the area becomes numb.
Drainage
A thin needle or catheter is inserted into the abdomen. You may feel pressure but not pain. Fluid drains into collection bags.
Completion
Once enough fluid is removed (often several liters), the needle is withdrawn and a bandage applied.
How Long Does It Take?
The procedure itself takes 20-45 minutes depending on how much fluid needs to be removed. Large-volume paracentesis may take longer.
After the Procedure
Relief
Most patients feel immediate relief from pressure and breathing difficulty.
Albumin
If large amounts of fluid were removed, you may receive IV albumin to maintain blood pressure.
Home Paracentesis
For patients who need frequent procedures, we offer home paracentesis throughout Southern California. Our team brings all necessary equipment, including portable ultrasound, to perform the procedure in your home.
Need Paracentesis?
We offer safe, comfortable paracentesis—including home procedures.