Procedural pain is the discomfort children and patients experience during medical procedures like needle sticks, blood draws, or minor surgeries—brief moments that can leave lasting effects on how they face healthcare in the future.

What Is Procedural Pain?

Procedural pain refers to the pain that people, particularly children, feel during medical procedures. These procedures can range from simple needle sticks for vaccinations and blood tests to more involved medical interventions like bone marrow aspirations or lumbar punctures (a procedure where a needle is inserted into the lower back to collect spinal fluid). Even common procedures such as having an intravenous line placed, getting a blood sample drawn through venipuncture (inserting a needle into a vein), or having a wound stitched can cause significant discomfort.^[1]

The experience of procedural pain is shaped by many factors working together. Biological aspects, such as a person’s sex, combine with psychological elements like anxiety levels and how parents or caregivers behave during the procedure. Even the procedure itself matters—how invasive it is, where it takes place, and the surrounding environment all play a role in how much pain someone feels.^[1]

While the actual moment of pain from a needle or procedure might last only seconds or minutes, the consequences can stretch far beyond that brief time. The memory of that pain, the fear it creates, and the ways it changes how someone approaches medical care in the future make procedural pain much more than a fleeting sensation.^[1]

How Common Is Procedural Pain?

Procedural pain is remarkably common throughout life, especially during childhood. Children go through numerous medical procedures as a normal part of growing up and receiving healthcare. Needles, in particular, are everywhere in modern medicine. They are used to prevent diseases through vaccination, to diagnose illnesses through blood tests, to treat conditions with medications, and to monitor ongoing health problems. On a global scale, between 8 and 12 billion vaccinations are administered every single year.^[1]

For children who are hospitalized, the frequency of painful procedures increases dramatically. Research shows that hospitalized children undergo approximately four procedures each day on average. Unfortunately, the pain from these procedures is often not treated adequately, leaving children to endure unnecessary discomfort.^[1]

Emergency departments represent another setting where procedural pain is extremely prevalent. About half of all visits to emergency departments result from painful conditions, and roughly 78 percent of patients experience pain at some point during their emergency department stay. The most common painful procedures in these settings include venipuncture and intravenous insertions.^[5]

Adults also face procedural pain regularly. When patients in one study were asked to rate emergency department procedures from most to least painful, nasogastric intubation topped the list, followed by fracture reduction, abscess drainage, digital block, and urinary catheter insertion. Even procedures that ranked lower on the pain scale, such as intravenous line insertion, lumbar puncture, and suturing, were still reported as painful by patients.^[4]

What Causes Procedural Pain?

Procedural pain is caused by the physical actions involved in medical procedures themselves. When a needle pierces skin, when tissue is cut or manipulated, when pressure is applied to sensitive areas, or when instruments are inserted into the body, nerve endings send pain signals to the brain. This is the body’s natural alarm system responding to what it perceives as potential harm or damage.

The intensity of procedural pain can vary widely depending on what the procedure involves. Simple procedures like a finger prick for a blood sugar test cause relatively mild, brief pain. More invasive procedures like bone marrow aspiration, where a needle is inserted deep into bone to extract tissue, cause much more intense pain.^[4]

However, the physical action of the procedure is not the only cause of the pain people feel. Pain is not just a physical sensation—it is also shaped by emotions, memories, and expectations. According to the neuromatrix theory of pain, pain is a multidimensional experience created by patterns of nerve signals generated by a widespread network in the brain. This network is influenced not only by the actual physical injury or procedure but also by psychological factors like stress, anxiety, and fear.^[2]

This means that two people undergoing the exact same procedure might experience very different levels of pain based on their emotional state, their previous experiences with medical procedures, and their expectations about how much it will hurt. For children, the behavior of parents during procedures can also influence how much pain they feel, as parental anxiety can increase a child’s perceived pain.^[5]

Who Is at Greater Risk for Procedural Pain?

While anyone undergoing a medical procedure can experience pain, certain groups face higher risks of more intense or poorly managed procedural pain. Children, especially young children and infants, are particularly vulnerable. Their nervous systems are still developing, and evidence suggests that painful experiences early in life can actually change how their nervous systems process pain in the future. Early painful stimuli might permanently alter the neuronal circuits in the spinal cord that process pain signals.^[2]

Hospitalized children face especially high exposure to procedural pain because they undergo multiple procedures each day, and their pain is frequently undertreated. Children with chronic illnesses who require repeated procedures, such as those undergoing cancer treatment or those with conditions requiring frequent blood monitoring, accumulate many painful experiences over time.^[1]

Individuals who have had previous negative experiences with needles or medical procedures are at higher risk for developing high levels of needle fear. These negative experiences appear to be a risk factor for developing intense needle fear that may generalize to fears and avoidance of medical procedures more broadly. People with high levels of needle fear require different types of interventions before they can fully benefit from pain management strategies.^[1]

Patients being cared for in non-pediatric settings also face greater risks. Caregivers in one study reported more negative experiences with procedures for their children when those procedures occurred at non-pediatric centers, suggesting that facilities not specialized in children’s care may be less prepared to manage pediatric procedural pain effectively.^[5]

Very young infants, particularly neonates (newborns less than 28 days old) and preterm babies, represent another high-risk group. These tiny patients are more sensitive to the adverse effects of pain medications, yet they also feel pain acutely and their developing nervous systems may be particularly vulnerable to the long-term effects of repeated painful experiences.^[6]

What Does Procedural Pain Feel Like?

The sensation of procedural pain varies depending on what procedure is being performed and who is experiencing it. For a simple needle stick, many people describe a sharp, stinging sensation that lasts only a moment. Others might feel a burning sensation, a deep ache, or a sensation of pressure along with the pain. Children between the ages of four or five and twelve can use tools like the Faces Pain Scale-Revised to point to images that show how much pain they are feeling. Older children and adolescents, age eight and up, can use a numerical rating scale where they rate their pain from zero to ten.^[1]

Because pain is a personal and subjective experience, self-report is considered the most important part of pain assessment when the person is able to communicate. However, for very young children, infants, or people with cognitive impairment or sedation, healthcare providers rely on observational scales and reports from parents or guardians to understand how much pain someone is experiencing.^[1]

Procedural pain is often accompanied by other uncomfortable sensations and reactions. People might experience dizziness, feel faint, break out in a sweat, or have their heart rate increase. These physical responses are part of the body’s stress reaction to pain and can sometimes be as distressing as the pain itself.

The emotional experience of procedural pain can be just as significant as the physical sensation. Fear and anxiety before a procedure can make the pain feel worse when it happens. During painful procedures, patients—especially children—may cry, try to pull away, tense their muscles, or feel overwhelmed. After the procedure, they might feel shaky, upset, or emotionally drained, even if the physical pain has passed.^[5]

For oncology patients undergoing bone marrow aspiration, the pain is often described as severe. This procedure involves inserting a needle deep into bone, and patients who have undergone it consistently rate it as one of the most intensely painful procedures they experience.^[4]

What Are the Short-Term and Long-Term Effects?

Procedural pain that is not managed well can lead to a cascade of negative effects, both immediately and in the future. In the short term, inadequately managed pain and fear during needle procedures can cause several problems. The procedure itself may take longer to complete because the patient is moving, tensing up, or resisting. Healthcare providers may feel forced to use physical restraint to complete the procedure, which is distressing for everyone involved and can increase both pain and fear. Patients may experience dizziness and fainting, which can lead to falls or other injuries.^[1]

When children experience painful procedures in the operating room after already having multiple painful procedures earlier in their hospital stay, they often arrive with immense anxiety, fear, and distress. This heightened emotional state leads to a greater pain response after surgery, creating a cycle where pain and fear feed into each other.^[3]

The psychological consequences of inadequately treated pediatric pain can be serious. When pain is not managed well, it can lead to both physical and psychological harm. The distress from poorly managed pain extends beyond the procedure itself and affects the overall healthcare experience.^[2]

The longer-term consequences of inadequately managed procedural pain are perhaps even more concerning. Negative memories of painful procedures lead to increased pain and fear at future procedures. The body may develop a need for additional analgesics to achieve the same pain-relieving effect, a phenomenon related to pain sensitization. Perhaps most problematic, people who have had painful procedure experiences may begin delaying or avoiding necessary medical care altogether, including showing vaccine hesitancy even when vaccination is important for their health.^[1]

For children, poorly managed procedural pain can have impacts that last into adulthood. Short-term impacts include anxiety, avoidance behaviors, and somatic symptoms (physical symptoms caused by psychological distress). Long-term impacts can include increased pain sensitivity, fear of medical settings, and healthcare avoidance as adults. These long-lasting effects can complicate not just the immediate procedure and hospital stay but a person’s relationship with healthcare for years to come.^[5]

Can Procedural Pain Be Prevented?

While procedural pain itself cannot always be eliminated—many medical procedures necessarily involve some tissue disruption or needle insertion—the amount of pain people experience can be significantly reduced through various prevention strategies. The key is addressing pain proactively before, during, and after procedures rather than waiting to treat it only after someone is already hurting.

For children, one of the most effective prevention strategies involves how caregivers and healthcare providers prepare them for what will happen. Involving families and patients in the care process is fundamental. Healthcare providers should direct information about the procedure not just to caregivers but to children themselves, using age-appropriate language. Offering choices when possible gives children a sense of control—letting them choose which arm to use or whether they want to watch or look away can make a significant difference.^[5]

The physical environment and how people are positioned during procedures matters tremendously. Using comfort positions eliminates unnecessary distress by helping people stay calm and still. Rather than restraining patients, comfort positioning involves holding infants and children in reassuring ways, such as chest-to-chest or back-to-chest positions where a parent or caregiver provides comforting touch and stability.^[3]

Screening for levels of needle fear before procedures can guide appropriate treatment. Children with low to moderate levels of fear can benefit from typical pain and distress management strategies. However, those with high levels of needle fear need different interventions first, before standard pain management techniques will be fully effective. Identifying these differences ahead of time allows healthcare teams to tailor their approach.^[1]

For infants, particularly those under 18 months, oral sucrose (sugar water) has been shown to provide mild pain relief. Small amounts of sweet solution placed on an infant’s tongue can reduce procedural pain through a sweet-taste mediated response in the body’s natural pain-relieving system. This works best when combined with other supportive measures like swaddling (wrapping the baby snugly), warmth, non-nutritive sucking (letting the baby suck on a pacifier), and in older infants, distraction.^[9]

Breastfeeding or skin-to-skin care, also called kangaroo care (where the infant lies on a parent’s bare chest), should be used whenever possible and feasible to relieve procedural pain in infants. These natural comforting methods activate the body’s own pain-soothing systems.^[9]

Topical numbing creams containing lidocaine can be applied to the skin before needle procedures to significantly decrease pain. However, these creams must be applied ahead of time and left on long enough to work properly. When healthcare providers do not allow enough time for the anesthetic to take effect, patients do not experience the benefit until after the procedure is over—missing the point entirely.^[4]

Distraction techniques during procedures help shift attention away from the pain. For young children, this might involve looking at pictures, playing with toys, or blowing bubbles. For older children and adults, watching videos, listening to music, counting, or storytelling can help. These distraction methods work because concentrating on something else can lessen the brain’s processing of pain signals.^[1]

Healthcare systems can implement comprehensive approaches to pediatric procedural pain. Some hospitals have developed programs that include partnership with patients and families, positioning for comfort, distraction, numbing medications, and special techniques for infants like sucrose or breastfeeding. Making these strategies standard practice rather than optional ensures that every patient benefits from pain prevention.^[3]

How Does Procedural Pain Affect the Body?

When a medical procedure causes tissue damage or stimulation, nerve endings called nociceptors (pain receptors) detect this and send electrical signals along nerve pathways to the spinal cord and then up to the brain. The brain processes these signals and creates the experience we recognize as pain. This is the body’s alarm system, designed to alert us to potential harm and trigger protective responses.

However, the processing of pain is not a simple, direct pathway. The experience of pain is created by complex interactions within a widespread network of brain regions. This network, described in the neuromatrix theory, produces characteristic patterns of nerve signals that the brain recognizes as pain. These patterns are influenced by many factors beyond just the physical stimulus—they are modulated by sensory inputs from the procedure itself but also by cognitive and emotional factors like psychological distress, anxiety, and previous memories of pain.^[2]

In infants and young children, the nervous system is still maturing, which affects both how pain is experienced and how the body responds to it. The pathways that carry pain signals and the systems that modulate those signals are not yet fully developed. This developmental stage means that infants and children may process pain differently than adults, and repeated painful experiences during this critical period can actually reshape how these pathways develop.^[6]

When pain is experienced repeatedly without adequate management, the nervous system can become sensitized. Pain sensitization means the nervous system becomes more responsive to painful stimuli over time. The neuronal circuits that process pain in the spinal cord may be permanently altered by recurrent and poorly treated painful episodes, particularly in infancy when these circuits are still forming. This can lead to heightened sensitivity to pain that persists into later life, making future painful experiences hurt even more.^[2]

The body’s stress response system also activates during procedural pain. The release of stress hormones like cortisol and adrenaline causes physical changes: heart rate increases, blood pressure rises, breathing becomes faster, muscles tense, and blood flow changes. While these responses are meant to be protective in true emergencies, when they are triggered repeatedly during medical procedures, they can contribute to the overall distress and may have their own negative effects, particularly in vulnerable populations like premature infants.^[6]

Interestingly, the body also has natural pain-relieving systems. The brain can release its own pain-reducing chemicals called endogenous opioids, similar to morphine. This is why some pain management techniques that do not involve medications—like the sweet taste of sucrose for infants or distraction techniques—can still provide real pain relief by activating these natural systems.^[9]

Maturational changes from birth through adolescence affect not only how pain is perceived and processed but also how pain-relieving medications work in the body. The way drugs are absorbed, distributed, metabolized, and eliminated changes with age. Dosing and clearance of pain medications, though often reduced in newborns, become equal to or greater than adult levels during childhood. Newborns are also more sensitive to adverse effects of pain medications, making pain management in this age group particularly challenging and requiring careful consideration of developmental factors.^[6]