A sore knee after an unusually active day doesn't automatically mean something is seriously wrong.
But a knee that keeps hurting is different.
So is one that suddenly swells, gives way when you walk, refuses to straighten properly or becomes too painful to put weight on.
The useful question isn't simply:
“Why does my knee hurt?”
It's:
“Is this something I can monitor, or does it need medical assessment?”
Knee pain has many possible causes, from injuries and mechanical problems to different forms of arthritis.
Here are some signs that can help you decide when it's time to have yours checked.
What Can Cause Knee Pain?
The knee is a complex joint involving bones, cartilage, ligaments, tendons and other structures.
Problems affecting any of them can cause pain.
Ligament Injuries
Ligaments help stabilise the knee.
An ACL injury, for example, commonly occurs during activities involving sudden stops, jumping, pivoting or changes of direction.
Other ligament injuries can occur after falls, collisions and other forms of trauma.
Meniscus Injuries
The menisci are pieces of cartilage within the knee that help distribute load through the joint.
Injury can occur during twisting movements and may be associated with pain, swelling, catching or locking.
Tendon and Overuse Problems
Repeated loading, exercise or sudden changes in activity can irritate structures around the knee.
The location of the pain and what triggers it can help a clinician determine what may be involved.
Osteoarthritis
Osteoarthritis can cause pain, stiffness and reduced joint function.
Treatment does not automatically begin with surgery. Exercise, weight management where appropriate, medications and other non-surgical approaches can form part of treatment.
These are only some possibilities.
Persistent knee pain is better assessed than self-diagnosed.
7 Signs Your Knee Pain Should Be Checked
1. The Pain Isn't Improving
Minor soreness may improve with time.
Pain that persists, keeps returning or becomes progressively worse deserves more attention.
If you've started changing the way you walk, avoiding stairs or giving up activities because of the knee, that's useful information to tell your doctor too.
2. Your Knee Is Significantly Swollen
Swelling can happen after an injury or with other joint problems.
Marked swelling is one of the reasons Mayo Clinic recommends medical assessment for knee pain.
Pay particular attention when swelling develops quickly or accompanies significant pain or restricted movement.
3. You Can't Put Weight on It
If standing or walking on the affected leg becomes extremely difficult or impossible, don't simply try to push through it.
Inability to bear weight is a reason to seek medical assessment, particularly after an injury.
4. Your Knee Keeps Giving Way
A knee that repeatedly buckles or feels unstable can indicate a problem affecting the structures responsible for stability.
This is particularly worth assessing when it begins after an injury.
5. You Can't Bend or Straighten It Properly
Restricted movement matters.
Mayo Clinic recommends medical assessment when someone is unable to fully flex or extend the knee.
If your knee locks, catches repeatedly or won't move through its normal range, have it assessed.
6. The Pain Started After a Significant Injury
A forceful twist, fall, sports collision or road traffic injury deserves a different level of attention from ordinary soreness after activity.
Seek prompt medical care if an injury causes severe pain, obvious deformity, substantial swelling or inability to use the leg normally.
7. It's Interfering With Everyday Life
You don't have to wait until knee pain becomes unbearable.
If it repeatedly affects walking, stairs, work, exercise, sleep or other normal activities, it's reasonable to find out what's causing it.
The effect on your daily life is clinically relevant.
When Is Knee Pain More Urgent?
Seek prompt medical care if your knee:
- Looks visibly deformed after an injury
- Cannot bear weight
- Develops severe pain after significant trauma
- Becomes suddenly very swollen
- Is painful, red and swollen alongside fever
- Cannot bend or straighten
These are among the warning signs identified by Mayo Clinic for urgent or medical assessment.
What Happens During an Orthopaedic Assessment?
Your doctor will want more information than simply:
“My knee hurts.”
Expect questions about:
- When the pain started
- Whether an injury happened
- Where you feel the pain
- What makes it worse
- Whether the knee swells
- Whether it locks or gives way
- Previous knee problems
- Your medical history
- How the pain affects everyday activities
A physical examination can help assess movement, tenderness, swelling and stability.
Depending on what your doctor finds, imaging or other investigations may be appropriate.
Does Seeing an Orthopaedic Doctor Mean I'll Need Surgery?
No.
This is an important misconception.
Many knee conditions are initially managed without surgery.
For osteoarthritis, for example, treatment can involve therapeutic exercise, weight management where appropriate, medication and other non-surgical measures.
Surgery becomes relevant for particular conditions and particular patients.
Even when someone has knee osteoarthritis, NICE recommends considering referral for joint replacement when symptoms such as pain, stiffness, reduced function or progressive deformity substantially affect quality of life and non-surgical treatment is ineffective or unsuitable.
So:
Knee pain → orthopaedic appointment → surgery
is not an automatic sequence.
The first job is figuring out what's wrong.
Looking for an Orthopaedic Doctor in Ibadan?
Banby Specialist Hospital provides specialist orthopaedic care in Akobo, Ibadan.
Its orthopaedic surgical services include hip and knee surgery, total hip replacement and total knee replacement where clinically appropriate.
If knee pain is persistent, worsening or interfering with normal movement, an assessment can help determine the cause and the appropriate next step.
[Explore Orthopaedic Services]
[Book an Orthopaedic Appointment]
[Call Banby Specialist Hospital]
Frequently Asked Questions
What kind of doctor should I see for knee pain?
Many knee complaints can initially be assessed by a general doctor. An orthopaedic surgeon specialises in conditions affecting the musculoskeletal system and may be appropriate for injuries, persistent pain, instability, significant joint problems or conditions that may require specialist treatment.
Should I see a doctor if my knee hurts when climbing stairs?
It depends on the cause, severity and duration. If the problem persists, becomes worse or starts affecting everyday activities, an assessment can help determine why it is happening.
Can knee pain improve without surgery?
Yes. Many causes of knee pain are managed without surgery. The appropriate treatment depends on the diagnosis.
Does knee pain mean I have arthritis?
No. Arthritis is one possible cause of knee pain, but injuries and other conditions can also cause pain. Avoid diagnosing the cause based on symptoms alone.
Does arthritis mean I will eventually need knee replacement surgery?
No. Osteoarthritis does not automatically lead to joint replacement. NICE recommends considering referral when symptoms substantially affect quality of life and appropriate non-surgical management has been ineffective or unsuitable.