Squatting is part of many daily activities, from picking something up to exercising at the gym. When knee pain appears during a squat, it can be worrying, especially if the pain is sharp, deep inside the knee or linked to clicking, swelling or locking.
One possible cause is a meniscus tear. The meniscus is a piece of cartilage inside the knee that helps cushion and stabilise the joint. It can be injured during a sudden twist, deep squat, sports movement or gradual wear-and-tear over time. However, knee pain when squatting is not always caused by a meniscus tear. It may also come from kneecap irritation, tendon strain, arthritis, ligament injury or muscle weakness.
What Is the Meniscus?
Each knee has two menisci. These are C-shaped pieces of cartilage located between the thigh bone and shin bone. They act like shock absorbers and help distribute weight across the knee joint.
The meniscus helps with:
- Cushioning the knee during movement
- Supporting joint stability
- Spreading load during walking, running and squatting
- Helping the knee move smoothly
- Protecting the joint surface from excess stress
A tear can affect how the knee moves and feels, especially during twisting or weight-bearing activities.
Why Does Squatting Trigger Knee Pain?
Squatting places load through the knee joint. As the knee bends deeply, the meniscus, cartilage, ligaments, tendons and muscles all work together to control movement.
Pain during squatting may happen because:
- The knee joint is compressed in a bent position
- The meniscus is placed under pressure
- The kneecap tracks poorly
- Tendons around the knee are irritated
- The thigh or hip muscles are weak
- The knee twists slightly during the squat
- Existing arthritis or cartilage wear is present
- A previous injury has not fully recovered
If pain is mild and improves with rest, it may be related to temporary irritation or overload. If pain is sharp, recurrent or linked to swelling, locking or instability, a medical review may be needed.
Could Knee Pain When Squatting Be a Meniscus Tear?
Yes, knee pain when squatting could be related to a meniscus tear, especially if the pain began after a twisting movement, deep bend or sports injury.
A meniscus tear may happen when the knee twists while the foot is planted. This can occur during football, basketball, badminton, tennis, netball, gym exercises or even a sudden turn during daily activity. In older adults, the meniscus may weaken over time, making it easier to tear during simple movements such as squatting or standing up from a low chair.
A meniscus tear may cause pain during squatting because the torn cartilage can be compressed or caught inside the joint when the knee bends.
What Are the Signs of a Meniscus Tear?
Symptoms can vary depending on the size, location and type of tear. Some people can still walk after a meniscus injury, while others may feel the knee lock or give way.
Possible symptoms include:
- Pain along the inner or outer side of the knee
- Pain during squatting, twisting or kneeling
- Swelling after activity or injury
- Clicking, catching or popping
- A knee that locks or gets stuck
- Difficulty fully bending or straightening the knee
- A feeling that the knee may give way
- Pain when going up or down stairs
- Stiffness after sitting or resting
- Reduced confidence during sport or exercise
A popping sound at the time of injury, followed by swelling and instability, may also suggest other injuries such as an ACL tear. This is why assessment is important.
Where Is Meniscus Tear Pain Usually Felt?
Meniscus pain is often felt along the joint line of the knee. This means the inner or outer side of the knee where the thigh bone and shin bone meet.
The location may depend on which meniscus is injured:
Medial Meniscus Tear
The medial meniscus is on the inner side of the knee. Pain may be felt along the inside of the knee, especially when squatting, twisting or standing up.
Lateral Meniscus Tear
The lateral meniscus is on the outer side of the knee. Pain may be felt along the outside of the knee and may worsen during turning or pivoting movements.
However, pain location alone does not confirm the diagnosis. Other knee conditions can cause similar symptoms.
What Else Can Cause Knee Pain When Squatting?
Not all squat-related knee pain is due to a meniscus tear. Other common causes include:
Patellofemoral Pain
This refers to pain around or behind the kneecap. It may worsen with squatting, stairs, running or sitting with knees bent for a long time. It can be linked to muscle imbalance, overuse or kneecap tracking issues.
Knee Tendon Irritation
Tendons around the knee can become irritated from repeated jumping, running, squatting or sudden increases in exercise. Pain may be felt at the front of the knee or below the kneecap.
Knee Arthritis
Arthritis may cause pain, stiffness, swelling and reduced movement. Squatting may feel difficult because bending the knee deeply increases pressure across the joint.
Ligament Injury
Ligament injuries can happen after twisting, pivoting or direct impact. They may cause instability, swelling and pain during movement.
Muscle Weakness or Poor Technique
Weak hip, thigh or core muscles may affect knee alignment during squats. The knee may move inwards or forwards excessively, increasing strain on the joint.
Cartilage Injury
Damage to the joint cartilage can cause pain, swelling, catching or discomfort during weight-bearing movement.
Because several conditions can overlap, persistent pain should be assessed rather than self-diagnosed.
When Should You See a Doctor?
You should consider seeing a doctor if knee pain during squatting is persistent, worsening or linked to mechanical symptoms such as locking or catching.
Patients may seek assessment from an orthopaedic specialist at HC Orthopaedic Surgery if knee pain affects squatting, walking, stairs, exercise or daily activities. A clinical review can help determine whether the symptoms are due to a meniscus tear, ligament injury, kneecap problem, arthritis or another knee condition.
Seek medical advice if you have:
- Pain after a twisting injury
- Swelling that develops after activity or injury
- Knee locking or catching
- Difficulty fully straightening the knee
- Pain when squatting, kneeling or climbing stairs
- A feeling that the knee gives way
- Symptoms that do not improve after a few days of rest
- Recurrent pain when returning to sport
- Difficulty walking normally
Seek urgent care if there is severe pain, visible deformity, inability to bear weight, numbness or symptoms after a major fall or collision.
How Is a Meniscus Tear Diagnosed?
A doctor will usually begin by asking how the pain started. This includes whether there was a twist, fall, sports movement or gradual onset of pain.
The examination may include checking:
- Pain location
- Swelling
- Knee movement
- Joint line tenderness
- Walking pattern
- Ability to bend and straighten the knee
- Knee stability
- Pain during specific movement tests
The doctor may also check for other causes of pain, such as ACL injury, kneecap pain, arthritis or tendon problems.
Are Imaging Tests Needed?
Imaging tests may be recommended depending on the symptoms and examination findings.
Common tests include:
- X-rays: These do not show the meniscus clearly, but they can help check for fractures, arthritis or alignment issues.
- MRI scans: These can show the meniscus, ligaments, cartilage and other soft tissues in more detail.
- Ultrasound: This is less commonly used for meniscus tears but may help assess selected soft tissue problems around the knee.
Not every patient needs an MRI immediately. The decision depends on the severity of symptoms, whether the knee locks, whether the injury affects daily function and whether the diagnosis is unclear.
Can a Meniscus Tear Heal on Its Own?
Some small meniscus tears may improve with non-surgical care, especially if the tear is stable and located in an area with better blood supply. Other tears may not heal fully, particularly if they are large, unstable or located in areas with limited blood flow.
Healing depends on:
- Tear size
- Tear location
- Tear pattern
- Age and activity level
- Knee stability
- Presence of arthritis
- Other knee injuries
- Symptoms such as locking or giving way
Even when a tear does not fully “heal” on imaging, symptoms may improve with proper rehabilitation and activity changes in selected patients.
What Are the Treatment Options?
Treatment depends on the type of tear, symptoms, activity level and overall knee health. Many patients start with non-surgical care unless the knee is locked, unstable or significantly limited.
Rest and Activity Changes
Patients may be advised to avoid deep squats, kneeling, twisting and high-impact activity during the early stage. This helps reduce irritation and swelling.
Pain Relief and Anti-Inflammatory Medication
Medication may help reduce pain and inflammation in selected patients. Patients should check with a doctor or pharmacist before taking anti-inflammatory medicines, especially if they have stomach, kidney, heart or blood pressure conditions.
Physiotherapy
Physiotherapy may help improve knee movement, strength and control. It can also address hip, thigh and core weakness that may contribute to poor squat mechanics.
A physiotherapy plan may include:
- Gentle range-of-motion exercises
- Thigh strengthening
- Hip strengthening
- Balance training
- Movement retraining
- Gradual return to squatting
- Sport-specific rehabilitation
Bracing or Support
Some patients may benefit from a knee brace or temporary support, especially if the knee feels unstable. This should be guided by a healthcare professional.
Surgery
Surgery may be considered if symptoms continue despite non-surgical care, or if the tear causes locking, catching, repeated swelling or significant functional limitation.
Surgical options may include:
- Meniscus repair: The torn meniscus is stitched where healing is possible.
- Partial meniscectomy: The damaged part of the meniscus is trimmed while preserving as much healthy meniscus as possible.
- Treatment of associated injuries: Other injuries, such as ACL tears, may be managed at the same time when appropriate.
The doctor should explain the expected benefits, risks, recovery time and rehabilitation plan before surgery is considered.
Can You Continue Squatting with Knee Pain?
It depends on the cause and severity of pain. If squatting causes sharp pain, swelling, locking or instability, it is safer to stop and seek advice.
For mild pain, some people may be advised to modify squats instead of stopping all lower body movement. This may include:
- Reducing squat depth
- Avoiding heavy weights
- Keeping knees aligned with toes
- Slowing down the movement
- Avoiding twisting while squatting
- Working on hip and thigh strength
- Using pain as a guide
However, these modifications should not replace medical assessment if symptoms are persistent or worsening.
What Can You Do at Home First?
For mild knee pain after activity, early self-care may include:
- Resting from painful squats or sports
- Applying ice wrapped in a towel for short periods
- Elevating the leg if swollen
- Avoiding deep knee bends
- Wearing supportive footwear
- Doing gentle movement if it does not worsen pain
- Monitoring symptoms over the next few days
Avoid forcing the knee through pain or continuing heavy squats if swelling, catching or locking is present.
How Can You Reduce the Risk of Meniscus Injury?
Not all meniscus tears can be prevented, but certain habits may reduce knee strain.
Helpful steps include:
- Build thigh, hip and core strength
- Warm up before sport or gym training
- Increase exercise intensity gradually
- Practise safe squatting and landing technique
- Avoid twisting the knee while the foot is planted
- Use suitable footwear
- Rest when pain or swelling appears
- Address knee pain early instead of pushing through it
For older adults or people with knee arthritis, reducing deep squats and high-impact activities may help lower irritation.
Knee pain when squatting may be linked to a meniscus tear, especially if it follows a twisting injury or comes with swelling, locking, catching or instability. However, other conditions such as kneecap pain, tendon irritation, arthritis and ligament injury can cause similar symptoms.
A medical assessment can help identify the cause and guide treatment. Depending on the diagnosis, care may include rest, activity changes, physiotherapy, medication, bracing or surgery in selected cases. Early review is especially important when knee pain affects walking, stairs, exercise or daily activities.
Disclaimer: This article is for informational purposes only and does not substitute for professional medical advice, diagnosis, or treatment.
