How long can you leave a sprained ankle untreated?
Emma Payne
Published Jan 20, 2026
"An ankle sprain that lingers beyond 3 months is often an injury to a bone, tendon or ligament that is unlikely to heal without intervention," he says. "And the longer an ankle injury persists without proper treatment, the greater the likelihood that permanent disability will result."
What happens if a sprained ankle goes untreated?
If they're left untreated, sprains will often cause the ankle to become unstable, which can lead to chronic pain, swelling, instability and, ultimately, arthritis. Don't delay treatment. Sprains should be immobilized quickly, with the ankle ligaments in a stable position.
How long can a sprained ankle last without treatment?
Most ankle sprains heal with no problems. You should feel much better after 2 weeks. Up to a third of people still have some pain after a year.
How long is too long for a sprained ankle?
If you don't allow your ankle ligaments time to heal, you may have long-lasting instability (chronic ankle sprains) or repeat ankle sprains. If your symptoms continue for more than four to six weeks after injury and you still feel weakness when walking on your foot, you may have a chronic ankle sprain.
How do I know if my ankle sprain is serious?
People with a more severe ankle sprain — characterized by extreme bruising or swelling and an inability to bear weight on the foot without significant pain, or when there doesn't seem to be any improvement over the first several days after the injury — should seek medical attention, Drs. SooHoo and Williams say.
17 related questions foundHow do I know if I tore a ligament in my ankle?
If you have torn your ankle ligament, symptoms include:
- Swelling around your ankle joint.
- A feeling of instability.
- Bruising – sometimes up your lower leg and into your foot.
- Tenderness to touch.
- Pain when putting weight on your ankle.
- Popping sound at the time of injury.
Should I go to ER for sprained ankle?
Go to urgent care if your pain level and swelling is significant and you have difficulty walking, to the point that you need assistance, due to the pain. Go to the emergency room if your foot is bruised, deformed, or you are unable to walk at all. You may have a fracture, broken bone or serious ligament damage.
Can a sprained ankle heal in 3 days?
Most ankle sprains are mild and only need ice and elevation. Mild sprains typically begin to feel better in a few days to a week and heal by six weeks. More severe ankle sprains could take more than a few weeks or months to fully recover. Severe sprains may cause excruciating pain, crutches may be needed.
How do I know if I broke my ankle?
If you have a broken ankle, you may experience some of the following signs and symptoms:
- Immediate, throbbing pain.
- Swelling.
- Bruising.
- Tenderness.
- Deformity.
- Difficulty or pain with walking or bearing weight.
What is the difference between a sprained ankle and a twisted ankle?
A sprained ankle is similar to a twisted ankle but to a greater degree. When you sprain your ankle, it means you have stretched, and possibly even torn, the ligaments of your ankle. If your ankle is swollen, bruised and painful after you twist it, then you have most likely sprained it.
Is it OK to walk on a sprained ankle?
Do not walk on a sprained ankle. The inflamed tissue needs time to heal, and walking on it too soon may cause more damage. Ankle sprains are common musculoskeletal injuries that can occur from playing sports or from everyday activities.
Can a sprained ankle get worse?
Yes. That's the very short answer. According to the National Association of Athletic Trainers, ankle injuries, including sprains, are very often undertreated. Ignoring treatment, including excessive movement of the ankle through unnecessary walking, leads to a greater risk of worsening the injury.
Can a sprained ankle heal in 2 days?
After 2 to 3 days
protocol, a mild sprain will be mostly healed and ready for you to resume normal activity. A moderate or severe sprain may require you to keep up these treatment steps for longer—up to several weeks.
What happens if you don't stay off a sprained ankle?
A sprained ankle can turn into a serious chronic instability if left untreated. When you leave torn ligaments to heal on their own, they can fuse together haphazardly and form weak, inflexible scar tissue. Your range of motion can suffer tremendously, resulting in difficulty walking for the long term.
Can a sprained ankle be permanent?
"An ankle sprain that lingers beyond 3 months is often an injury to a bone, tendon or ligament that is unlikely to heal without intervention," he says. "And the longer an ankle injury persists without proper treatment, the greater the likelihood that permanent disability will result."
Did I break my foot or sprain it?
Another way to tell the difference between a broken foot and sprained foot is the sound the body makes when the injury occurs. If you have a sprain, you're more likely to hear a popping sound. If you have a fracture, then you're more likely to hear a cracking sound.
What hurts more sprain or break?
Sometimes, a sprain can be even more painful than a break. A sprain is caused by trauma that overstretches ligaments and puts stress on a joint. A mild sprain is where the ligaments are stretched but the joint remains stable, while a moderate sprain is where the ligaments are slightly torn, making the joint unstable.
Is it a sprain or a break?
If you can walk with soreness, it is unlikely that it is broken. Is there significant swelling? If the injured area experiences immediate and severe swelling, that could be a sign of a broken bone or fracture. However, if the swelling is mild and develops gradually, it is likely a sprain or strain.
Should a sprained ankle still be swollen after a week?
This level of sprain shouldn't result in any instability or muscle weakness but can cause minor swelling. Grade 1 sprained ankle recovery time is anywhere from 2 weeks to a month, normally closer to the two-week mark with proper treatment.
Should I wrap a sprained ankle overnight?
Compression -- Wrapping a stretchable elastic bandage around your foot and ankle can help minimize swelling after injury. If you're going to wrap your ankle, it is best to put the bandage on first thing in the morning, and then take it off at bedtime.
What is a Grade 2 ankle sprain?
Grade 2: A more severe sprain, but incomplete tear with moderate pain, swelling and bruising. Although it feels somewhat stable, the damaged areas are tender to the touch and walking is painful.
How do I know if my foot injury is serious?
Go to the emergency room if:
- there's an open wound on your foot.
- pus is coming out of your foot.
- you can't walk or put weight on your foot.
- you experience severe bleeding.
- there are broken bones coming through your skin.
- you feel lightheaded or dizzy.
- you think your foot could be infected.
How should you sleep with a sprained ankle?
Elevating a sprained ankle reduces the accumulation of fluid in the joint. This can ease swelling, which may also help reduce pain. Try sleeping with the foot and ankle propped up on pillows at a level higher than the heart. When sitting or resting, use pillows or a footrest to keep the foot and ankle elevated.
Does a sprained ankle turn red?
Redness: A sprained ankle can cause warmth and redness around the affected area. If your ankle is warm, red, and swollen, it is inflamed. Warmth and redness is caused by increased blood flow to the area.
What does a torn tendon in ankle feel like?
When tendons become injured or torn, it can cause pain, swelling, weakness in the foot and ankle, and discomfort when standing, walking or playing sports.