Orthopedic
Weight-Bearing Status: NWB, TTWB, PWB and WBAT Explained
The ladder from non-weight-bearing to full, what each term allows, and why WBAT is the one people misread.
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Weight-bearing status is the instruction that says how much of your body weight may go through a healing leg. It runs as a ladder: non-weight-bearing means nothing at all, toe-touch means the foot rests on the floor for balance only, partial means a set share of your weight, weight-bearing as tolerated means as much as comfort allows, and full weight-bearing means no restriction. WBAT is the most commonly misread of these — it does not mean unlimited, and it does not mean pushing through pain. The instruction that counts is the one your own surgeon gave you, because targets and progression schedules are not standardized between surgeons.
The five levels, at a glance
These are the terms that appear on discharge paperwork and in physical therapy notes. They describe load, not activity.
| Status | Short form | How much weight |
|---|---|---|
| Non-weight-bearing | NWB | No weight at all through the limb. The foot does not touch the ground, even for balance. |
| Touch-down or toe-touch weight-bearing | TDWB / TTWB | The foot may rest on the floor for balance only. Think of resting it on an egg without breaking the shell. |
| Partial weight-bearing | PWB | A specified share of your body weight may pass through the limb — frequently expressed in pounds or kilograms rather than as a fraction. |
| Weight-bearing as tolerated | WBAT | As much weight as comfort allows, with you deciding in the moment and adjusting as it changes. |
| Full weight-bearing | FWB | No restriction on load. This is not the same as no restriction on activity. |
What weight-bearing status actually is
After a fracture, a repair, or a reconstruction, the tissue that is healing needs two things that pull against each other. It needs some mechanical load, because bone, tendon and cartilage all respond to being used. And it needs protection from too much load, because excessive force at the wrong stage can disturb what is knitting together.
Weight-bearing status is how a surgeon sets that balance for one person at one point in healing. It is a prescription about force, and it changes as healing progresses. A review of partial weight-bearing after lower-limb surgery describes exactly this trade-off, and notes that hip, knee, ankle and foot procedures commonly warrant a restriction.3
It is not a comment on how well you are doing. Two people with similar injuries can be given different instructions because the repair, the bone quality, and the surgeon's judgment all differ.
The levels, one by one
Non-weight-bearing (NWB)
No weight at all through the limb. The foot does not touch the ground, even for balance.
What carries the rest. Crutches, a walker, or a knee scooter, with the leg held clear.
When it is used. Early after some fractures and repairs, where any load risks displacing what is healing.
Touch-down or toe-touch weight-bearing (TDWB / TTWB)
The foot may rest on the floor for balance only. Think of resting it on an egg without breaking the shell.
What carries the rest. The limb steadies you; it does not carry you.
When it is used. A step up from non-weight-bearing, often used to help balance while protecting the repair.
Partial weight-bearing (PWB)
A specified share of your body weight may pass through the limb — frequently expressed in pounds or kilograms rather than as a fraction.
What carries the rest. Crutches or a walker share the rest of the load.
When it is used. A staged return to loading, where the target usually rises over several weeks.
Weight-bearing as tolerated (WBAT)
As much weight as comfort allows, with you deciding in the moment and adjusting as it changes.
What carries the rest. Whatever support you still need, reducing as comfort improves.
When it is used. Once the repair is judged stable enough that pain is a safe guide.
Full weight-bearing (FWB)
No restriction on load. This is not the same as no restriction on activity.
What carries the rest. None required, though a limp may persist for a while.
When it is used. The end of the ladder, though running and impact are usually cleared separately.
What "as tolerated" really means
WBAT is the instruction people most often misread, in both directions.
It does not mean unlimited. It means comfort is being used as the guide, and comfort is a real limit. If putting weight through the limb produces sharp pain, that is the signal to put less through it.
It also does not mean waiting until it stops hurting. Some ache and stiffness during loading is expected, and holding back entirely slows the return of normal walking.
The practical test. Pain that eases as you move and settles afterward is usually load you can work with. Pain that sharpens with each step, or that leaves the limb more swollen and sore the next morning, means you have gone past the useful range for now.
Judging partial weight-bearing is harder than it sounds
If you have been told to put a set number of pounds through your leg, you have probably been shown the bathroom-scale method: press down until the dial reads your target, and try to remember what that felt like.
It is better than nothing, and it is not reliable. The review of current standards notes that household scales do not reproduce the demands of walking, and are associated with poor accuracy over time when compared against biofeedback devices.3 Standing still on a scale is a different task from loading a limb mid-stride.
Research has looked at giving people live feedback instead. A randomized trial in healthy older adults compared audio biofeedback against the scale method for learning a partial weight-bearing target, measuring actual load with sensor insoles across a range of activities.2
What this means for you. If your target matters, ask your physical therapist to check it with you rather than relying on memory. Ask them to watch you on stairs and on uneven ground, not only walking a corridor.
How long each stage lasts
There is no universal timetable, and this is the honest answer rather than a hedge. The same review found that targets and progression schedules remain surgeon-dependent and inconsistently standardized across practice.3
Timing is also an active research question. A meta-analysis of randomized controlled trials compared early against late weight-bearing after surgical fixation of ankle fractures in adults, examining both functional recovery and complication rates.1 That the question warranted a meta-analysis tells you it is genuinely debated.
What follows from that. A timetable you read online is not evidence about your own repair. If your instruction and something you have read disagree, the instruction wins, and the question is worth asking at your next appointment rather than resolving yourself.
Getting it wrong in either direction
Too much load, too early risks disturbing the repair. That is the risk the restriction exists to manage.
Too little load, for too long has its own cost. Muscle is lost quickly when a limb is unloaded, joints stiffen, balance confidence erodes, and the return to normal walking takes longer. This is why restrictions are staged rather than simply held until healing is complete.
Both are real, which is why the instruction is specific and why it changes over time.
Weight-bearing status in children
The terms are the same, and a few things differ in practice.
Children heal faster, so restricted stages are often shorter than an adult would expect for a comparable injury.
Partial weight-bearing is difficult for a young child to perform. Judging a set load through a limb requires a kind of deliberate control that most young children cannot sustain, particularly when distracted or tired. Instructions for children are therefore more often at the ends of the ladder — non-weight-bearing or as tolerated — with the equipment doing the enforcing.
Crutches need to fit and need teaching. A child on adult-height crutches will find a way around them. Time spent with a physical therapist on the stairs at home is worth more than the same time on level ground.
Expect the limp to outlast the restriction. Walking normally again is a separate piece of work from healing, and it is the part physical therapy addresses.
When to call your surgeon
- A sudden change in pain when weight goes through the limb, particularly if it was settling and then sharpened
- A new noise — a click, a snap, or a grinding sensation under load
- Swelling that increases rather than easing as the days pass
- The limb giving way or feeling unstable
- Calf pain, warmth, or swelling, which needs assessing promptly and separately
- Any accidental full load during a restricted stage — a stumble or a missed step is worth reporting rather than watching
If you are unsure which level you are on, or your paperwork and your memory disagree, call and ask. It is a short conversation and it is the whole basis of your recovery.
Frequently asked questions
Does WBAT mean I can walk normally?
Not immediately. It means load is limited by comfort rather than by a set figure, so most people build up over days rather than switching straight to normal walking. Support is often still needed at first, and a limp can persist after the restriction lifts — that part is usually addressed by physical therapy rather than by time alone.
What is the difference between toe-touch and partial weight-bearing?
Toe-touch allows the foot to rest on the ground for balance only, carrying essentially no load. Partial weight-bearing allows a specified share of your body weight through the limb. Toe-touch is the more restrictive of the two, and the foot touching the floor is what makes it easy to confuse with light partial loading.
Can I shower or drive while non-weight-bearing?
Both depend on which limb is involved and what else was done, so they are questions for your own surgical team. Showering usually needs a plan for keeping a dressing or cast dry and for not needing the limb to steady yourself. Driving is a separate clearance and is not implied by any weight-bearing status.
Why did my status change at my appointment?
Because it is meant to. Weight-bearing status is staged and reviewed as healing progresses, so moving from non-weight-bearing to partial, or from partial to as tolerated, is the expected path rather than a surprise. The change is based on how your repair looks at that point, which is why it is decided in person.
Sources
- Egu C, Akil S, Hakim A, et al. Early vs Late Weight Bearing After Ankle Fracture Fixation: A Meta-analysis of Randomized Controlled Trials. Foot & Ankle International; 2025. doi:10.1177/10711007251392223. DOI verified at Crossref; abstract read at Europe PMC.
- von Aesch A, Häckel S, Kämpf T, et al. Audio-biofeedback versus the scale method for improving partial weight-bearing adherence in healthy older adults. European Journal of Trauma and Emergency Surgery; 2024. doi:10.1007/s00068-024-02609-5. DOI verified at Crossref; abstract read at Europe PMC.
- Kunz EM, Foster DT, Tehrany PM, Sedigh A, Kachooei AR. Partial Weight-Bearing after Lower Extremity Surgery: A Review of Current Standards, Innovations, and Patient Adherence. Archives of Bone and Joint Surgery; 2026. PMID 42005418. Verified at Europe PMC — this DOI is not registered at Crossref.
Full texts were not read. Each claim above is matched to the source's own stated conclusion at title and abstract level.
Disclaimer. This page is for general educational purposes and does not constitute medical advice, diagnosis, or treatment. Follow the weight-bearing instruction given by your own surgical team.