Non weight bearing (often abbreviated NWB) is an instruction given after certain fractures or surgeries that means putting no weight at all on an injured leg or foot, not even for balance or a quick step. If a clinician has told you or someone you are caring for to stay non weight bearing, this guide explains what the instruction covers, how it differs from related terms like partial or full weight bearing, and what safe mobility during this period generally looks like. It is meant to help you understand the instruction, not to replace guidance from the surgical or orthopedic team that prescribed it.
What non weight bearing (NWB) means
Non weight bearing describes a mobility restriction in which the affected limb must not touch the ground or bear any load, including the weight of the leg itself when standing or transferring. It is one of several weight-bearing status categories used in orthopedics to describe exactly how much force a healing bone, joint, or soft tissue repair is allowed to experience during recovery. The instruction is typically written on a discharge summary or physical therapy order using the acronym NWB, alongside a timeframe and the name of the affected limb.
NWB instructions are most common after fractures of the leg, ankle, or foot (including the tibia, fibula, calcaneus, and metatarsals), after certain hip and pelvic fractures, and following surgical procedures such as internal fixation with plates or rods, ligament reconstruction, or some tendon repairs. The goal is to protect the repair while the bone or tissue regains enough strength to handle load again. A physical therapist or surgeon usually reassesses the limb at scheduled follow-up visits and updates the weight-bearing status once imaging or clinical signs suggest it is safe to progress.
How NWB differs from FWB, PWB, TTWB, and WBAT
Weight-bearing instructions exist on a spectrum, and the terminology can be confusing because several categories sound similar. The table below summarizes the common statuses clinicians use in the United States, from strictest to least restrictive.
| Status (abbreviation) | What it means |
|---|---|
| Non weight bearing (NWB) | No weight at all on the limb; it should not touch the ground during standing or walking |
| Touch-down weight bearing (TTWB) | The foot may lightly touch the floor for balance only, without supporting any real body weight |
| Partial weight bearing (PWB) | A specific, limited percentage of body weight is allowed, often given in pounds or a fraction of total weight |
| Weight bearing as tolerated (WBAT) | The patient can put as much weight through the limb as their own pain and comfort allow, without a fixed limit |
| Full weight bearing (FWB) | No restriction; the limb can bear complete body weight as normal |
The key distinction between NWB and touch-down weight bearing is subtle but important: touch-down allows brief foot contact purely for balance and proprioception (the body’s sense of where a limb is in space), while true NWB means the foot stays off the ground entirely, usually with the help of a mobility aid. If you’re unsure which category applies to you, the surgical or physical therapy team that gave the order is the right group to clarify it with, since the exact definition can vary slightly by clinic. For a closer look at how these statuses relate to broader mobility assessments, see our guide on full weight bearing and how it’s assessed.
Why the weight-bearing restriction matters for healing
Bones heal through a biological process that is sensitive to mechanical load. Too much force too early can shift a fracture out of alignment, loosen surgical hardware, or disrupt the delicate new tissue forming at a repair site. A recent analysis of tibial shaft fractures treated with intramedullary nailing found that a longer delay before any weight bearing was allowed was associated with a higher rate of nonunion (when a fracture fails to heal properly) and delayed union, suggesting that the timing of progression, not just the existence of a restriction, plays a real role in outcomes. This is one reason surgeons set individualized timelines rather than applying a single rule to every injury.
At the same time, staying completely still is not the goal either. Extended immobility carries its own risks, including reduced blood flow to the legs, a higher chance of blood clots, and measurable loss of muscle mass and joint flexibility, especially in muscles that aren’t being used. This is why an NWB order is almost always paired with other instructions, such as ankle pumps, range-of-motion exercises for unaffected joints, or a schedule for physical therapy, so that the parts of the body that are allowed to move keep moving safely. Our guide to range of motion (ROM) and why it’s measured covers how clinicians track joint flexibility during recovery periods like this one.
Mobility aids for staying non weight bearing safely
Because the affected limb cannot help with balance or propulsion, most people on NWB restrictions rely on an assistive device to get around. The right choice depends on upper body strength, home layout, balance, and how long the restriction is expected to last.
Crutches
Axillary (underarm) or forearm crutches are the most common option and allow relatively fast movement once the technique is learned. They require reasonable arm and shoulder strength, since the entire non-weight-bearing side of the body is supported through the hands and arms with each step. Crutch walking has a learning curve, and incorrect technique (such as leaning weight into the armpits rather than the hands) can cause nerve compression or skin irritation over time.
Walkers
A standard or wheeled walker offers a wider, more stable base of support than crutches, which can be reassuring for people with balance concerns or less upper body strength. Walkers are generally slower and bulkier, and some styles (like platform or leg-support walkers) are specifically designed to support a bent, non-weight-bearing leg while the person moves the walker forward.
Knee scooters
A knee scooter lets the person kneel on a padded platform with the injured leg bent, then propel themselves with the healthy leg while steering with handlebars, similar to a scooter. A multicenter randomized trial comparing knee scooters with standard forearm crutches found that people using knee scooters reported better overall quality of life, greater independence, and were more often able to cover longer distances within a set time, though scooters are not ideal on stairs or in very tight spaces.
Wheelchairs
For longer distances, significant fatigue, or when other aids aren’t practical (such as right after surgery), a wheelchair may be used, either as the primary method of getting around or as a supplement to crutches or a scooter for outings.
Whichever device is used, a physical therapist or occupational therapist typically provides hands-on training before discharge, covering how to safely navigate stairs, thresholds, uneven ground, and transfers on and off furniture, in and out of a car, and on and off the toilet.
Tips for staying safe while non weight bearing
- Keep walkways clear of rugs, cords, and clutter that could catch a crutch tip or scooter wheel
- Use non-slip mats and, if possible, a shower chair or bench for bathing
- Ask about a raised toilet seat or grab bars if balance or transfers feel unsteady
- Plan transfers (bed to chair, chair to standing) slowly and have a stable surface within reach
- Keep crutch or scooter tips in good condition and check them periodically for wear
- Set up a downstairs living and sleeping area temporarily if stairs are a major obstacle
- Ask your care team about the correct hand and arm position for crutches to avoid strain or nerve irritation
- Keep follow-up appointments so your weight-bearing status can be reassessed and progressed appropriately
How long does an NWB restriction typically last
There is no single universal timeline, because the appropriate duration depends on the specific bone or structure involved, the type of fracture or surgery, individual healing factors such as age and smoking status, and the surgeon’s assessment of stability at the repair site. In published surveys of orthopedic surgeons managing certain fracture types, recommended restricted weight-bearing periods have ranged anywhere from about two weeks to twelve weeks, reflecting how much individual judgment goes into these decisions. Many people are transitioned through intermediate stages, such as touch-down or partial weight bearing, before reaching full weight bearing, rather than moving directly from NWB to normal walking. Your surgeon or physical therapist will set and adjust your specific timeline based on your imaging, symptoms, and progress. For related concepts around functional recovery milestones, our article on activities of daily living (ADLs) explains how clinicians track a person’s return to routine self-care tasks during recovery.
What happens if the restriction isn’t followed
Research on postoperative weight-bearing consistently finds that adherence to NWB and partial weight-bearing instructions is harder in practice than it sounds. A qualitative study of clinicians managing hip fracture patients described fear of further injury and unclear or inconsistently communicated instructions as common reasons patients struggle to follow weight-bearing plans exactly as prescribed. Separately, a large randomized trial comparing early and delayed weight bearing after ankle fracture surgery found that a structured, supervised change in weight-bearing timing can be both safe and effective, which underscores that any change to a weight-bearing plan should come from the treating clinician rather than being self-directed.
Putting unplanned weight on a healing limb, even briefly or accidentally, is not automatically catastrophic, but repeated or sustained loading against instructions can shift a fracture, loosen hardware, or slow healing, and it’s reasonable to mention any such incident to your care team so they can decide whether an extra check-in or imaging is warranted. If you’re unsure whether an accidental step or stumble is a concern, contacting your surgical team’s office is a more reliable path than guessing.
Dernières avancées scientifiques
Researchers have spent the past few years trying to understand why sticking to a weight-bearing restriction is so difficult in real life, and what might make it easier. A qualitative study of orthopedic surgeons and physiotherapists managing hip fracture recovery found that patient fear of re-injury, along with a lack of standardized postoperative protocols, were recurring barriers to consistent weight-bearing guidance, highlighting that clearer communication between care teams and patients may be as important as the restriction itself.
On the technology side, engineers have been testing wearable tools that give real-time feedback on how much weight a person is actually putting through a healing limb. One feasibility study fitted a small group of patients recovering from foot and ankle surgery with a smart insole that measured weight-bearing load and sent an alert when they exceeded their prescribed limit; the group that received this feedback showed better compliance with their partial weight-bearing targets than the group without it. Similar sensor-based insoles and inertial devices have also been used in research settings to track a person’s gait pattern over weeks of recovery, offering a more detailed picture of healing progress than occasional in-clinic checks alone.
Separately, researchers looking at tibial shaft fractures found that the timing of when weight bearing was first allowed after surgery was statistically linked to the likelihood of the fracture healing completely (each week of delay was associated with a modestly higher chance of nonunion), which is prompting some surgical teams to reconsider how conservatively they set initial restrictions. And in a multicenter trial comparing mobility aids, patients supplied with a knee scooter alongside their usual crutches reported meaningfully better quality-of-life scores and greater independence than those using crutches alone, suggesting that the choice of assistive device, not just the restriction itself, can meaningfully affect a person’s recovery experience. None of this research suggests people should adjust their own weight-bearing status; instead, it points toward better tools and communication to help patients follow the plan their own care team has set.
Glossaire
| Terme | Définition |
|---|---|
| Non weight bearing (NWB) | An instruction to put no weight at all on an injured limb during standing, walking, or transfers |
| Touch-down weight bearing (TTWB) | Light foot contact with the ground for balance only, without bearing real body weight |
| Partial weight bearing (PWB) | A defined, limited amount of body weight allowed through the limb, often given as a percentage or weight in pounds |
| Weight bearing as tolerated (WBAT) | Putting as much weight through the limb as comfort and pain allow, without a specific fixed limit |
| Full weight bearing (FWB) | No weight-bearing restriction; the limb can support complete body weight |
| Nonunion | A fracture that fails to heal completely within the expected timeframe |
| Range of motion (ROM) | The degree to which a joint can be moved in a particular direction, used to track flexibility and recovery |
| Knee scooter | A wheeled mobility device with a padded platform for kneeling that lets a person propel themselves with the uninjured leg |
| Internal fixation | A surgical technique that uses plates, screws, or rods to hold broken bone fragments in place during healing |
| Activities of daily living (ADLs) | Routine self-care tasks such as bathing, dressing, and toileting, often used to measure functional recovery |
FAQ
How do people manage six weeks or more of being non weight bearing?
Most people adapt gradually by setting up their living space to reduce how often they need to move, arranging help for tasks like cooking or laundry, and using their prescribed mobility aid consistently rather than skipping it for short distances. Physical therapy sessions during this period usually focus on maintaining strength and flexibility in the rest of the body, which can also help the transition back to walking feel less difficult once weight bearing is allowed to progress. Support from family, friends, or a home health aide can make a meaningful difference during the early weeks.
How should I sleep or sit while non weight bearing?
There is no single required position, but many people find it more comfortable to keep the affected leg slightly elevated with a pillow to reduce swelling, and to avoid positions that require pushing off the injured limb to get up. When sitting, using a chair with armrests can make transfers easier without needing to put weight through the leg. If a specific position has been recommended for your injury, such as keeping a limb elevated above heart level, follow that guidance from your care team.
How do I use the toilet while non weight bearing?
Occupational or physical therapists commonly recommend a raised toilet seat, grab bars, or a bedside commode to make this transfer safer and less physically demanding. The general technique involves backing up to the toilet using crutches or a walker, then lowering down using arm strength on a stable surface rather than the injured leg. If this feels unsafe or you’re unsure of the technique, ask your care team for a demonstration before you’re on your own at home.
What should I do if I accidentally put weight on the limb?
A brief, accidental touch of the foot to the ground is common and not usually cause for panic, but it’s worth mentioning at your next appointment, especially if it was followed by new or worsening pain, swelling, or a feeling of instability. If the incident involved sustained weight, a fall, or a significant increase in pain, contact your surgical team’s office sooner rather than waiting for a routine follow-up.
What’s the difference between crutches and a knee scooter for NWB recovery?
Both are valid options, and the right choice depends on personal factors like upper body strength, home layout, and how far you typically need to travel. Some research suggests knee scooters may be associated with greater comfort and independence for certain patients, while crutches tend to be more practical on stairs and in tight spaces. Your physical therapist can help you decide which device, or combination of devices, fits your situation best.
Will I need physical therapy after my NWB restriction ends?
Many people benefit from a period of physical therapy as they transition from non weight bearing to partial or full weight bearing, since muscles and joints that haven’t borne weight for a while often need guided strengthening and balance work before returning to normal activity. Your surgeon or therapist will typically outline what this transition looks like based on your specific injury and recovery progress.
Sources
- MedlinePlus (National Library of Medicine, NIH) — Using crutches — Patient Instructions, reviewed 2024 — medlineplus.gov/ency/patientinstructions/000343.htm
- Cleveland Clinic — How To Use Crutches — Cleveland Clinic Health Library, reviewed 2025
- OrthoInfo (American Academy of Orthopaedic Surgeons) — How To Use Crutches, Canes, and Walkers — OrthoInfo Recovery, reviewed 2025
- Turabi RY, et al. — Barriers and facilitators to early mobilisation and weight-bearing as tolerated after hip fracture surgery among older adults in Saudi Arabia: a qualitative study — Age and Ageing, 2024
- Avcı E, et al. — Improving partial weight bearing compliance with a smart insole: Validity, reliability, and feasibility study — Foot and Ankle Surgery, 2025
- Moon T, et al. — Association between time to weight bearing and rates of nonunion, delayed union, and malunion after intramedullary nailing of tibial shaft fractures — Injury, 2026
- Clas H, et al. — Quality of Life and Patient Satisfaction After the Provision of an Orthopedic Knee Scooter — a Multicenter Randomized Controlled Trial — Deutsches Ärzteblatt International, 2024
- Bretherton C, et al. — Early versus delayed weight-bearing following operatively treated ankle fracture (WAX): a non-inferiority, multicentre, randomised controlled trial — The Lancet, 2024
Pour aller plus loin
- FWB meaning: full weight bearing guide
- ROM meaning: range of motion defined
- ADL meaning: activities of daily living guide
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