Bioelectricity and Healing: How Cells Use Electrical Signals to Repair and Organize
When we talk about healing, we usually think in biochemical terms.
Inflammation. Collagen. Blood flow. Growth factors. Immune cells. Hormones. Genes.
All of those matter.
But healing also has an electrical dimension.
When tissue is injured, the electrical balance across that tissue changes. The normal movement of charged particles is disrupted, and the wound itself begins generating measurable electrical currents and fields.
That means an injury does more than create a chemical signal.
It also creates an electrical one.
And cells can respond to it.
WHAT HAPPENS ELECTRICALLY WHEN TISSUE IS INJURED?
Healthy epithelial tissues such as skin maintain electrical differences across their layers because ions are actively transported through channels and pumps.
When that barrier is broken, the voltage difference is disrupted. Ions leak across the damaged area, creating what researchers call an injury current and an endogenous electric field around the wound.
These fields are not theoretical. They have been measured in living tissues.
A classic review of endogenous electric fields in wound healing describes wound-generated fields in vertebrate tissues and notes that many epithelial cells, including human keratinocytes, can detect fields of physiological strength and migrate directionally in response. [Nuccitelli, 2003]
In other words, the wound creates an electrical signal—and nearby cells can read it.
CELLS CAN FOLLOW ELECTRICAL CUES
Cell migration is one of the most important parts of repair.
After injury, cells must move into the damaged area, close gaps, rebuild tissue, restore barriers, and coordinate with neighboring cells.
Researchers use the terms electrotaxis or galvanotaxis to describe directional cell movement in response to an electric field.
A 2018 review on electrically stimulated cell migration explains that physiological electric fields can activate signaling pathways involved in directional migration and can provide a dominant cue that helps guide cells toward a wound. [Zhao et al., 2018]
A 2022 review focused on wound healing describes how epithelial cells detect minute endogenous fields and can migrate collectively toward the wound center as a coordinated sheet. [Tai et al., 2022]
That is a striking idea.
Electrical information is not simply powering the cell.
It can help tell the cell where to go.
HEALING REQUIRES ORGANIZATION, NOT JUST REPAIR
A wound does not heal merely because cells multiply.
They must know how to organize.
Skin cells need to restore a barrier.
Blood vessels need to reconnect.
Nerves may need to regrow.
Connective tissue must be rebuilt.
Immune activity must eventually settle.
Cells need to stop migrating when the job is complete.
Healing is coordinated behavior.
And bioelectric signals appear to be one part of that coordination.
A systematic review examining bioelectricity in wound healing and regeneration concluded that naturally occurring voltage gradients are involved in growth, repair, and regenerative processes across animals, humans, and plants. The authors also emphasized that major questions remain about exactly how those signals encode and transmit information. [Mathews et al., 2017]
That combination is important.
The phenomenon is real.
Our understanding of it is still incomplete.
WHEN ELECTRICAL SIGNALS ARE ALTERED, HEALING CAN CHANGE
One of the strongest reasons researchers take endogenous electric fields seriously is that changing them can affect healing.
Experimental work reviewed in the wound-healing literature shows that reducing or disrupting endogenous electric fields can slow or impair aspects of tissue repair, while enhancing or externally applying appropriately directed fields can sometimes promote wound closure and regeneration.
[Nuccitelli, 2003; Messerli & Graham, 2011]
A review of the electrical response to injury describes wound-generated fields as a long-lasting, regulated biological response and notes that enhancing or inhibiting this electrical activity can increase or decrease healing, respectively. [Zhao et al., 2014]
This does not mean electricity is the only thing controlling repair.
Far from it.
Wound healing is chemical, mechanical, immune, vascular, genetic, and electrical.
The interesting part is that the electrical piece is not optional background noise.
It is part of the conversation.
WHAT ARE CELLS ACTUALLY SENSING?
This is still an active area of research.
Cells do not have tiny compass needles pointing toward a wound.
Instead, weak electric fields appear to influence ion channels, membrane proteins, receptors, intracellular signaling pathways, the cytoskeleton, and the machinery that controls cell polarity and movement.
Researchers have identified several pathways that may participate in electrical sensing, including PI3K/PTEN signaling, calcium-related mechanisms, membrane transporters, and cytoskeletal regulation.
But there is no single universal “electric-field receptor” that explains everything.
That is another reminder that biology is rarely simple.
A cell is constantly integrating many signals at once.
Chemical gradients.
Mechanical pressure.
Neighboring cells.
Nutrients.
Immune messages.
Electrical state.
Healing emerges from all of these layers interacting.
THE BODY CREATES ITS OWN ELECTRICAL ENVIRONMENT
This is where the subject becomes especially interesting to me.
We often talk about electricity as though it is something external that we apply to the body.
A pacemaker.
A defibrillator.
Electrical stimulation.
A medical device.
But the body already produces its own electrical environment.
Every intact tissue contains ion gradients.
Every cell has a membrane voltage.
Injuries create local electrical disturbances.
Groups of cells can respond collectively to those changes.
The body is not waiting for electricity to arrive from outside.
It is already using electrical information from within.
That does not make the process mysterious.
But it does make the body far more dynamic than a purely structural picture suggests.
REPAIR, REGENERATION, AND THE QUESTION OF PATTERN
Repair and regeneration are not exactly the same thing.
Repair may close a wound and restore function while leaving scar tissue.
Regeneration goes further. It recreates missing structures in an organized way.
Some animals can regenerate limbs, spinal cord tissue, tails, or other complex structures far more successfully than humans can.
Researchers studying bioelectricity are interested in whether electrical patterns help cells maintain information about anatomy—what shape should exist, where boundaries belong, and what tissue should form.
A 2017 review of bioelectricity and regeneration describes endogenous voltage patterns as information-bearing signals associated with growth, development, wound healing, and regeneration. [Mathews et al., 2017]
Research on injury-generated fields in highly regenerative nervous systems has also found that tissue damage creates strong ionic currents and electric fields that can influence migration, proliferation, and differentiation—behaviors essential to regeneration. [Cao et al., 2016]
This is not the same as saying electricity contains a complete blueprint of the body.
But researchers are asking whether bioelectric patterns participate in maintaining and restoring biological form.
That is a remarkable question.
CAN WE USE ELECTRICAL SIGNALS THERAPEUTICALLY?
Medicine has been experimenting with electrical stimulation for wound care for decades.
Research reviews have examined external electrical stimulation for chronic and difficult-to-heal wounds, including effects on cell migration, blood flow, tissue formation, and wound closure.
A 2022 review describes electrical stimulation as an emerging therapy inspired directly by the wound’s endogenous electric field, while also emphasizing that there are still major questions about optimal stimulation patterns, mechanisms, and translation into routine care. [Ashrafi et al., 2022]
More recent research continues to explore wearable devices, electroactive dressings, conductive materials, and small electrical stimulation systems intended to support tissue repair.
So this is not a fringe question.
Researchers are actively trying to understand how to work with the body’s electrical repair systems.
WHERE DOES THIS LEAVE ENERGY HEALING?
It would be tempting to make a leap here.
The body uses electrical signals during healing.
Reiki practitioners talk about energy.
Therefore Reiki must be manipulating bioelectric wound fields.
That conclusion would go beyond the evidence.
We do not know that Reiki, intuitive energy healing, chakras, meridians, or subtle-energy practices operate through these specific mechanisms.
But the science of bioelectricity does give us a more expansive picture of the body.
Healing is not only chemical.
Cells respond to voltage.
Tissues generate fields.
Electrical gradients can carry directional information.
Electrical state can influence repair.
That does not prove every energetic model.
But it does make one thing clear:
Living systems are energetic systems in a very literal biological sense.
And once we understand that, the conversation becomes much more interesting.
SCIENCE MAY MEASURE ONE LAYER OF A LARGER EXPERIENCE
Spiritual traditions have spoken for centuries about flow, blockage, balance, life force, and the restoration of harmony.
Modern biology speaks about ion gradients, membrane voltage, electrical fields, cell polarity, signaling networks, and collective tissue behavior.
Those are not interchangeable languages.
But I do not think we need to force them apart either.
Science can tell us that cells follow electrical cues toward a wound.
It can measure injury currents.
It can observe voltage gradients.
It can manipulate them experimentally.
Spiritual practice may be asking a different question:
What is the experience of wholeness, balance, flow, and connection within a living person?
Perhaps those are entirely different layers.
Perhaps someday we will understand more overlap between them.
For now, both perspectives remind us that healing is not a single event.
It is coordination.
It is communication.
It is organization.
And sometimes, part of that communication is electrical.
WHAT WE KNOW — AND WHAT WE ARE STILL LEARNING
We know that wounds generate endogenous electrical currents and fields.
We know that many cells involved in repair can respond directionally to those fields.
We know that electrical cues can influence migration, proliferation, polarity, and other behaviors important to healing.
We know that disrupting those signals can alter repair.
We know that researchers are investigating ways to use electrical stimulation and electroactive materials therapeutically.
What we do not yet fully understand is how all of this electrical information is integrated with biochemical, mechanical, genetic, immune, and perhaps other forms of signaling across the whole organism.
That is where the mystery remains.
And I think mystery is where curiosity belongs.
SOURCES FOR CURIOUS READERS
Nuccitelli R. A Role for Endogenous Electric Fields in Wound Healing. Current Topics in Developmental Biology. 2003.
McCaig CD, Song B, Rajnicek AM. Electrical Dimensions in Cell Science. Journal of Cell Science. 2009.
Zhao M, et al. Electrically Stimulated Cell Migration and Its Contribution to Wound Healing. Burns & Trauma. 2018.
Tai G, et al. Bioelectric Signaling: Role of Bioelectricity in Directional Cell Migration in Wound Healing. Frontiers in Bioengineering and Biotechnology. 2022.
Mathews J, et al. Nature's Electric Potential: A Systematic Review of the Role of Bioelectricity in Wound Healing and Regenerative Processes in Animals, Humans, and Plants. Frontiers in Physiology. 2017.
Zhao M, et al. The Electrical Response to Injury: Molecular Mechanisms and Wound Healing. Advances in Wound Care. 2014.
Cao L, et al. Endogenous Bioelectric Fields: A Putative Regulator of Wound Repair and Regeneration in the Central Nervous System. Neural Regeneration Research. 2016.
Ashrafi M, et al. Status and Challenges of Electrical Stimulation Use in Chronic Wound Healing. Current Opinion in Biotechnology. 2022.