Hypogastric Plexus Block: How It Works, Recovery, Risks, and How Long Relief Lasts
Updated: 6 days ago
Written and medically reviewed by Dr. Baraa Alnahhal, MD · Last reviewed: October 2026 · How we review
Quick Answer: What is a hypogastric plexus block?
A hypogastric plexus block is an outpatient injection that numbs or destroys a bundle of nerves near the bottom of the spine to relieve long-lasting pelvic and lower abdominal pain. It can help pain from cancer, endometriosis, interstitial cystitis and other pelvic conditions when oral medicines are not enough. Relief lasts hours to months, depending on the medicine. [1]
What the research says
Many people with chronic pelvic pain get lasting relief. A comprehensive review of the superior hypogastric plexus block found long-lasting relief in 50% to 70% of patients who had the procedure, although the overall quality of evidence is still limited. (Urits et al., Curr Pain Headache Rep, 2021) [2]
Less pain and fewer opioids after abdominal hysterectomy. A meta-analysis of 5 studies with 210 patients found the block lowered pain scores by about 1 point, cut opioid use by about 19 morphine milligram equivalents, and helped patients get out of bed about 1.3 hours sooner, with no major side effects. (Salem et al., Medicina (Kaunas), 2023) [3]
The strongest benefit comes in the first 12 hours after surgery. A meta-analysis of 4 randomized trials with 289 women found lower pain scores in the recovery room and at 2, 6 and 12 hours after hysterectomy, but no difference at 24 hours. The block also reduced opioid use and nausea and vomiting. (Shama et al., J Pain Palliat Care Pharmacother, 2022) [4]
Key takeaways
A hypogastric plexus block targets nerves near the bottom of the spine that carry pain signals from the pelvis. [1]
It is used for long-lasting pelvic pain when medicines taken by mouth do not give enough relief. [1]
The procedure takes about 30 minutes, you stay awake with a sedative, and you go home the same day. [1]
A local anesthetic gives relief for hours to days, a steroid for weeks to months, and alcohol or phenol aims for long-term relief. [1]
Serious complications are uncommon, but call your doctor for fever, severe pain or swelling at the injection site, or leg weakness. [1]
Hypogastric plexus block at a glance
Question | Answer |
What it is | A pain-relieving injection into a nerve bundle near the bottom of the spine [1] |
What it treats | Chronic pain in the bladder, colon, lower intestines, prostate, testicles, uterus or ovaries [1] |
Who performs it | An interventional pain management physician [1] |
Setting | Outpatient — you go home the same day [1] |
Anesthesia | Local numbing plus an IV sedative; you stay awake [1] |
Procedure time | About 30 minutes, then at least 30 minutes of observation [1] |
Back to normal activity | The next day; avoid strenuous activity for 24 hours [1] |
How long relief lasts | Hours to days (anesthetic), weeks to months (steroid), long-term (alcohol or phenol) [1] |
What is the hypogastric plexus?
The hypogastric plexus is a bundle of nerves near the bottom of the spine that carries pain information from the pelvic area. [1] When a doctor blocks these nerves, they stop sending pain signals to the brain, so pain in the lower abdomen and pelvis eases. [1]
The plexus has two parts, and the injection targets the part closest to the source of pain. [1]
What does a hypogastric plexus block treat?
A hypogastric plexus block treats long-lasting pain in the lower abdomen and pelvis. [1] It can ease pain coming from the:
Bladder
Colon and lower intestines
Prostate or testicles
Uterus or ovaries
This pain can come from many conditions. We list the most common ones below, with links to our full guides. [1]
Who might need a hypogastric plexus block?
A hypogastric plexus block may suit people whose pelvic pain is long-lasting and not controlled well enough by oral pain medicines. [1] For many, the goal is to reduce how often they need to take pain pills. [1]
If you live with ongoing pelvic pain, our chronic pelvic pain guide explains the other treatment options your care team may try first.
How do you prepare for a hypogastric plexus block?
Preparing for a hypogastric plexus block means following your doctor's instructions on food, medicines and transport. [1] Common instructions include:
Fasting: Do not eat or drink for a few hours before the procedure.
Medicines: You may need to stop certain medicines before the day of the procedure, but only under your doctor's supervision. Do not stop or start any medicine on your own.
A ride home: Arrange for someone to drive you to and from your appointment.
Your doctor will also tell you which medicine they plan to use and how long they expect the relief to last. [1]
What happens during a hypogastric plexus block?
During a hypogastric plexus block, an interventional pain management physician uses X-ray guidance to place medicine on the nerve bundle. [1] The steps usually look like this: [1]
Relax: You get a sedative through an IV line in your arm.
Position: You lie on your stomach on an X-ray table.
Numb: Your skin is cleaned, and a local anesthetic numbs your lower back.
Guide: X-ray images guide two needles into your lower back.
Confirm: A dye injection confirms the medicine will reach the right spot.
Inject: Pain medicine goes into the plexus. This may be an anesthetic, a steroid or both.
Long-term option: For lasting relief, alcohol or phenol may be injected to destroy the nerves completely.
You stay awake the whole time. The sedative relaxes you, and your doctor may ask how you feel during the procedure to check your comfort. [1]
How long does a hypogastric plexus block take?
A hypogastric plexus block usually takes about 30 minutes. [1] Afterward, you stay for observation for at least 30 minutes, so most people go home a little over an hour after the procedure starts. [1]
What happens after a hypogastric plexus block?
After a hypogastric plexus block, the pelvic area may feel warm or "different," which is normal. [1] Many people notice less pelvic pain about 30 minutes after the injection. [1]
Bruising or soreness at the injection site is also common and can last a couple of days. [1] Tell your doctor if you have severe pain after the injection. [1]
How long does a hypogastric plexus block last?
How long a hypogastric plexus block lasts depends on the medicine used. [1]
Some people need several injections, or a mix of medicines, to get the best relief. [1] You may need only one injection, or your doctor may give a series as needed. [1] Your doctor will explain what to expect before the procedure.
What does recovery look like after a hypogastric plexus block?
Recovery after a hypogastric plexus block is short: you rest at home that day and return to normal physical activity the next day. [1]
What are the benefits of a hypogastric plexus block?
The main benefit of a hypogastric plexus block is relief from lower abdominal or pelvic pain. [1] It may also reduce how often you need to take oral pain medicines. [1]
Research reviews add that interventional treatments like this one can lower the need for long-term opioid use. [2]
How well does a hypogastric plexus block work?
A hypogastric plexus block works well for many people, but results vary by condition. [2]
Chronic pelvic pain: A comprehensive review reported long-lasting relief in 50% to 70% of patients. The authors noted that more randomized trials are needed. [2]
Pain after hysterectomy: Two meta-analyses found lower pain scores and less opioid use, with the clearest effect in the first 12 hours. [3][4]
Cancer-related pain from internal organs: A European systematic review gave the block a weak recommendation, meaning doctors should decide case by case. [5]
Open surgery for gynecologic cancer: A systematic review found no significant effect from the block on pain after this type of surgery. [6]
The takeaway: the block is a useful option, especially when other treatments have not worked, and your pain specialist can tell you how likely it is to help in your case.
What are the risks of a hypogastric plexus block?
The risk of complications from a hypogastric plexus block is low. [1] Possible complications include: [1]
Allergic reaction to the medicine
Bleeding
Infection, such as fever or severe pain and swelling at the injection site
Damage to nearby organs or blood vessels
Nerve damage outside the plexus
When should you call your doctor after a hypogastric plexus block?
Call your doctor after a hypogastric plexus block if your pain gets worse or does not go away. [1] Also call if you have any of these side effects: [1]
Fever
Severe pain and swelling at the injection site
Weakness in your legs
Conclusion
A hypogastric plexus block is a short, outpatient procedure that can ease long-lasting pelvic pain when pills alone are not enough. The medicine your doctor chooses decides how long relief lasts, from a few hours to months or longer. Most people return to normal activity the next day, and serious problems are uncommon.
Living with chronic pain affects your body, your mood and your time with people you love. You do not have to simply live with it.
Ready for your next step? Save or print this guide and take it to your next appointment. Ask your care team whether a hypogastric plexus block fits your pain plan, which medicine they would use, and how long they expect relief to last. You can also read how a similar nerve injection works in the upper abdomen in our celiac plexus block guide.
FAQ
What is a hypogastric plexus block used for?
A hypogastric plexus block is used to relieve long-lasting pain in the lower abdomen and pelvis. It can help pain linked to cancer, endometriosis, interstitial cystitis, irritable bowel syndrome, pelvic inflammatory disease, and injury from surgery or radiation.
Will I be awake during a hypogastric plexus block?
Yes, you stay awake during a hypogastric plexus block. A sedative helps you relax, and your doctor may ask questions during the procedure to check your comfort.
Does a hypogastric plexus block hurt?
A hypogastric plexus block is done after a local anesthetic numbs the skin of your lower back, and a sedative helps you relax. Afterward, bruising or soreness at the injection site is common and can last a couple of days.
How soon does a hypogastric plexus block start working?
A hypogastric plexus block often works quickly, and many people feel less pelvic pain about 30 minutes after the injection. The pelvic area may also feel warm or "different," which is normal.
How long does a hypogastric plexus block last?
A hypogastric plexus block lasts hours to days with a local anesthetic and weeks to months with a steroid. Alcohol or phenol destroys the nerves for long-term relief, and some people need more than one injection.
Can I drive home after a hypogastric plexus block?
No, you should not drive yourself home after a hypogastric plexus block, because you receive a sedative. Arrange for someone to drive you to and from your appointment.
What are the side effects of a hypogastric plexus block?
The most common side effect of a hypogastric plexus block is bruising or soreness at the injection site. Rare complications include allergic reaction, bleeding, infection, damage to nearby organs or blood vessels, and nerve damage outside the plexus.
When should I call my doctor after a hypogastric plexus block?
Call your doctor after a hypogastric plexus block if your pain gets worse or does not go away. Also call for fever, severe pain and swelling at the injection site, or weakness in your legs.
How long does a hypogastric plexus block procedure take?
The procedure usually takes about 30 minutes. You stay awake with a sedative to help you relax and usually go home the same day.
What is a neurolytic hypogastric plexus block?
It is a version of the block that uses alcohol or phenol to destroy the pelvic pain nerves for longer-lasting relief. It is most often considered for severe pain, such as pain from cancer.
Further reading
References
Cleveland Clinic. Hypogastric Plexus Block: What It Is & Side Effects. Cleveland Clinic. Last updated July 1, 2024. https://my.clevelandclinic.org/health/treatments/17117-hypogastric-plexus-block
Urits I, Schwartz R, Herman J, et al. A Comprehensive Update of the Superior Hypogastric Block for the Management of Chronic Pelvic Pain. Curr Pain Headache Rep. 2021;25(3):13. PMID 33630172. https://doi.org/10.1007/s11916-020-00933-0
Salem H, Bukhari IA, Al Baalharith M, et al. Analgesic Efficacy of Intraoperative Superior Hypogastric Plexus (SHP) Block during Abdominal Hysterectomy: A Systematic Review and Meta-Analysis of Controlled Trials. Medicina (Kaunas). 2023;59(5):893. PMID 37241125. https://doi.org/10.3390/medicina59050893
Shama AAA, Elgarhy AMMM, Ewieda TMA, et al. Superior Hypogastric Plexus Block for Pain Management Post-Hysterectomy: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. J Pain Palliat Care Pharmacother. 2022;36(4):233-241. PMID 35939039. https://doi.org/10.1080/15360288.2022.2107144
Mercadante S, Klepstad P, Kurita GP, et al. Sympathetic blocks for visceral cancer pain management: A systematic review and EAPC recommendations. Crit Rev Oncol Hematol. 2015;96(3):577-583. PMID 26297518. https://doi.org/10.1016/j.critrevonc.2015.07.014
Dhondt LA, Vereen MS, van de Laar RLO, et al. Efficacy of locoregional analgesic techniques after laparotomy for gynecologic cancer: a systematic review. Int J Gynecol Cancer. 2024;34(9):1423-1430. PMID 39122447. https://doi.org/10.1136/ijgc-2024-005404
Medical disclaimer
This article is for general education and does not replace advice from a qualified healthcare professional. Talk with your doctor before making any decision about pain treatment. If you have severe pain, fever, or new weakness in your legs after a procedure, seek medical care right away.
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