Cauda Equina Syndrome: Care Staff Guide to a Spinal Emergency

Cauda equina syndrome is a rare but serious spinal emergency. The nerves at the bottom of the spinal cord become compressed, and without prompt treatment the damage can be permanent, affecting bladder, bowel, sexual function and the legs. Because early symptoms can look like ordinary back pain, staff who support older, disabled or vulnerable people need to know the warning signs and act without delay. This guide draws on information from NHS trusts, including a patient leaflet from the Royal Free London and a page from Torbay and South Devon NHS Foundation Trust. It links to our guide on spinal cord injury, which also covers bladder, bowel and skin issues.

What is cauda equina syndrome?

The Royal Free London describes it as a rare, serious condition affecting the cauda equina, the bundle of nerves at the lower end of the spine. It says the condition affects 1 to 3 in 100,000 people, and that it can lead to permanent loss of bladder or bowel control, sexual dysfunction or paralysis of the lower limbs. The same source states that early treatment lowers the risk of permanent disability. The Torbay and South Devon page explains that the problem is compression of the spinal nerves at the tail end of the spinal cord.

The warning signs

The trust sources list a group of red flag symptoms. A person does not need to have all of them, and the Torbay page highlights a sudden or rapid change in two or more of them within the past week.

• Back and leg pain: severe lower back pain, with or without pain down one or both legs
• Saddle numbness: loss of feeling or pins and needles between the inner thighs or genitals, or around the buttocks and back passage, including a changed feeling when wiping
• Bladder problems: difficulty starting, controlling or emptying urine, leaking, needing to start using pads, or not being sure whether the bladder is full or empty
• Bowel problems: being unable to stop a bowel movement, leaking, or not feeling stool pass
• Sexual function: a change in erection or ejaculation, or loss of genital sensation during sex

Some of these changes are easily missed or go unreported because people are embarrassed. A new need for pads, a change in continence or a person saying they cannot feel when they are sitting on the toilet should never be dismissed as part of ageing.

What to do: act immediately

Both trust sources are clear that anyone with these symptoms should go to the nearest emergency department (A&E) immediately. In a care setting, follow your organisation's emergency procedure, call 999 if the person cannot travel safely and tell the call handler that you are concerned about possible cauda equina syndrome. Do not wait for a routine GP appointment, and do not wait to see whether the symptoms settle.

The Torbay page also points people to a Cauda Equina Syndrome warning card from Bolton NHS Foundation Trust. People who have had back problems may keep such a card, and care staff should know where it is kept.

Why this matters in care settings

People who have long-standing back pain or sciatica often get used to symptoms, and staff may be told that "it is just their back". The important message is to look for change. Severe new back pain together with any bladder, bowel or sensory change is different from the person's usual pain and needs emergency assessment. Record what you noticed, when it started and any changes in continence, and share it with the ambulance crew or A&E team.

Causes, treatment and recovery

The trust pages that were reviewed do not list specific causes or set out the timing of treatment or recovery, so this guide does not attempt to do so. What they do make clear is that the condition is an emergency and that early treatment lowers the risk of permanent disability. Treatment decisions are made by specialist hospital teams.

After an episode, people may have lasting bladder, bowel or mobility problems and may need long-term support. Our guide to pressure ulcer prevention in care homes is relevant where reduced sensation or mobility affects the skin.

Practical points for staff

• Know the red flags and make sure all team members, including agency and night staff, can recognise them.
• Ask about continence changes during personal care, sensitively and in private.
• Do not delay while seeking a second opinion from colleagues.
• Record and hand over clearly what you saw, with times.
• Support dignity for people who are experiencing bladder or bowel changes.

Frequently asked questions

Is cauda equina syndrome common?

No. The Royal Free London says it affects 1 to 3 in 100,000 people, but it is serious enough that every care team should know the signs.

Do all the symptoms have to be present?

No. A combination of symptoms is a reason to seek emergency help, and a sudden change in two or more is highlighted by one NHS trust.

Should I ring the GP first?

No. The trust sources advise going to A&E immediately. If the person cannot travel safely, call 999.

Where can staff build their knowledge?

The health and social care learning available through Learnsignal CPD can help you stay confident in recognising emergencies.

This article is general information for care staff, based on information from NHS trusts, and does not replace the advice of a person's own clinicians. If you are worried about someone's health right now, contact their GP, NHS 111 or, in an emergency, call 999.