Does stem cell therapy cure spinal cord injury?

What mesenchymal stem cells (MSCs) can offer is support for the injured nervous system: they release anti-inflammatory and neuroprotective signals that may help protect surviving nerve tissue and support repair processes, and some patients report changes in sensation, muscle control, spasticity, bladder function or energy. In the CELLTOP trial from Mayo Clinic, published in Nature Communications in 2024, adults with traumatic SCI received MSCs into the spinal fluid with no serious adverse events attributed to the treatment, and several participants showed improvements in sensory and motor scores. At Stem Cell Mexico, SCI protocols use only allogeneic MSCs from Wharton's jelly of the umbilical cord, usually by intravenous (IV) infusion and, in selected cases after the doctor reviews your medical reports, by an additional intrathecal application. Treatment works alongside rehabilitation, results vary between patients, and SCI plans typically cost $7,000 to $9,500 USD.

This guide explains why SCI is so difficult to repair, what regenerative treatment can realistically support and how to set goals that matter in daily life.

Understanding spinal cord injury

The spinal cord carries signals between the brain and the body. According to the World Health Organization and the National Institute of Neurological Disorders and Stroke (NINDS, NIH), SCI most often results from traffic accidents, falls, sports injuries and violence, and its effects depend on:

• The level of injury: cervical injuries can affect the arms, hands, breathing and trunk; thoracic and lumbar injuries affect the trunk, legs, bladder, bowel and sexual function.
• The completeness of injury: described with the ASIA Impairment Scale (AIS), from A (complete, no motor or sensory function below the injury) to E (normal function).
• Time since injury: the acute phase (first weeks), the subacute phase (months) and the chronic phase (usually after a year).

Beyond movement and sensation, SCI can affect blood pressure, temperature control, bladder and bowel function, skin health, pain and mood.

Why a cure is not yet possible

After the initial trauma, a second wave of injury develops: inflammation, swelling, loss of blood flow and death of nerve cells and their protective myelin. Over time, a scar forms that blocks the regrowth of nerve fibers. Adult nerve fibers in the spinal cord also have a limited natural ability to regrow over long distances. These factors explain why no single treatment can rebuild the spinal cord.

What can change is how well the remaining connections work. Even in many injuries described as complete, some nerve fibers survive across the injury. Rehabilitation, technology and regenerative approaches aim to make the most of these surviving pathways.

What MSCs can support

MSCs from Wharton's jelly act through paracrine signaling: they release factors that may:

• Reduce inflammation around the injury.
• Protect surviving nerve cells and myelin.
• Support blood vessel formation in damaged tissue.
• Modulate the scar environment, which may make it more favorable for repair.
• Support neuroplasticity, helping rehabilitation be more productive.

Patients sometimes report changes such as new or improved sensation, small gains in muscle activation, better trunk control, reduced spasticity, better bladder awareness or more energy. These changes, when they occur, are usually gradual and vary widely.

What the evidence shows

• CELLTOP trial (Mayo Clinic, 2024): ten adults with traumatic SCI received a single intrathecal dose of MSCs. The primary safety endpoint was met, with no serious adverse events attributed to the treatment. Headache and musculoskeletal pain were common and managed with simple medications, and several participants showed improvements in sensory and motor scores.
• Regulatory milestone: in Japan, an MSC product for SCI received conditional, time-limited approval in 2018.
• Reviews of human studies: systematic reviews of MSC studies in SCI report a good safety profile and improvements in sensory and motor scores in some patients.
• Safety of umbilical cord MSCs: a 2026 meta-analysis of IV umbilical-cord-derived MSCs in Stem Cells Translational Medicine found temporary fever as the most consistent side effect, without an increase in serious infection, thrombosis, cancer or death in controlled trials.

Realistic goals

For many people with chronic SCI, the most valuable changes are not walking again, but improvements that make daily life easier:

• Better trunk balance for sitting and transfers.
• Small gains in hand function for eating, writing or using a phone.
• Improved sensation that helps prevent pressure injuries.
• Less spasticity or nerve pain.
• Better bladder or bowel awareness.
• More energy and endurance during therapy.

Defining two or three goals like these with the doctor and your therapists makes it possible to measure what changes.

Rehabilitation remains essential

Intensive rehabilitation is the foundation of recovery after SCI. Physical and occupational therapy, activity-based training, assistive technology and, in specialized centers, spinal cord stimulation combined with rehabilitation help people make the most of their remaining function. Regenerative treatment is added to this work, and many families plan a period of more intensive therapy after treatment.

What our patients usually receive

Based on the treatment plans our team prepares for neurological patients, a typical SCI protocol at Stem Cell Mexico includes:

• Wharton's jelly MSCs by IV infusion, usually between 100 and 200 million cells, depending on body weight and medical review.
• An additional intrathecal application (similar to an epidural, usually about 60 million cells) in selected cases, only after the doctor reviews your medical reports and confirms you are a candidate.
• One night at our facilities, sometimes two, with nursing and medical monitoring, including support for transfers, bladder and bowel care and pressure-injury prevention.
• Consultation with your doctor and the stem cell specialist, pre-treatment laboratory tests and wheelchair-accessible ground transportation from the San Diego airport area.

SCI plans typically cost $7,000 to $9,500 USD. Recovery is gradual, and each person responds differently: some notice changes within the first weeks, while others notice them over the following months. Our team stays in contact after treatment to follow your progress and decide whether a second application could help.

Safety considerations specific to SCI

• Autonomic dysreflexia: in injuries at or above the sixth thoracic level, a sudden rise in blood pressure can be triggered by a full bladder, constipation or skin pressure. Staff are trained to recognize and manage it.
• Pressure injuries: regular repositioning and pressure-relieving surfaces protect the skin during travel and the stay.
• Temperature control: people with high injuries may have difficulty regulating temperature, so fever is monitored closely.
• Breathing: cervical injuries can weaken coughing, so respiratory status is reviewed before treatment.

No treatment is free of risk, which is why screening and monitoring are adapted to each injury.

Preparing for travel with SCI

• Bring your records: recent MRI reports, neurology or rehabilitation notes, your AIS level and a list of medications.
• Plan bladder and bowel care: bring catheters and supplies for the full trip plus extra days, and schedule your routine around travel times.
• Protect your skin: use your pressure-relieving cushion during flights and car rides and plan regular pressure relief.
• Request airport assistance and inform the airline about your wheelchair.
• Travel with a caregiver who knows your routine, especially with cervical injuries.
• Carry an autonomic dysreflexia card if your injury is at or above T6.

Our team arranges wheelchair-accessible transportation and confirms the accessibility of rooms in advance.

Questions families often ask

Will my loved one walk again? For most people with chronic SCI, the realistic goals are improvements in sensation, trunk control, hand function, spasticity or energy, rather than walking. The doctor explains what is realistic for each injury.

How long until we see changes? Changes, when they occur, are usually gradual over months, and are best measured by your therapists with the same tests used before treatment.

Who may be a candidate

• Stable SCI, usually in the subacute or chronic phase, with recent medical records and imaging.
• Stable blood pressure, skin and bladder management.
• No active infection, including urinary tract infection or pressure injury, and no cancer within the past five years.
• Participation in rehabilitation before and after treatment.

Questions to ask during your evaluation

• What changes could be realistic for my level and completeness of injury?
• Am I a candidate for the intrathecal application?
• How will my bladder, bowel and skin care be handled during the stay?
• How will we measure results with my therapists?

Bottom line

Stem cell therapy does not cure spinal cord injury, but Wharton's jelly MSCs can support the injured nervous system through anti-inflammatory and protective signals, with a favorable safety record, and some patients report changes in sensation, muscle control, spasticity or energy. At Stem Cell Mexico, treatment works alongside rehabilitation, and results vary between patients. A medical evaluation can help determine whether this type of regenerative treatment is appropriate for your injury, goals and medical history.