A meniscus tear is a tear in the meniscus, the tough, C-shaped piece of cartilage that cushions and stabilises the knee. It usually happens when the knee is twisted under load - in sport or a sudden movement - or wears thin with age. Typical signs are pain along the joint line, swelling, and a catching or locking feeling when you bend the knee.
Symptoms
A meniscus tear may cause immediate pain after a twist, or build gradually with age-related wear. Common signs include:
Pain along the joint line, on the inside or outside of the knee
Swelling that develops over the first day or two, not instantly
A catching, clicking or locking feeling when bending or straightening
A sense the knee might give way or feels unstable
Difficulty fully straightening the knee if a fragment is caught
A pop felt at the moment of injury in some cases
Causes
Tears fall into two broad groups - sudden injuries and gradual wear. Common contributors:
Twisting or pivoting the knee while bearing weight (sports injuries)
Deep squatting or heavy lifting with poor form
Age-related thinning of the cartilage (degenerative tears)
A direct blow or awkward landing
Existing knee osteoarthritis, which weakens the cartilage
Returning to sport too quickly after a previous knee injury
What helps a meniscus tear?
Many meniscus tears - especially milder, degenerative ones - settle with rest, rehab and pain relief rather than surgery. The early priority is calming swelling and protecting the knee from twisting, then rebuilding the muscles that support it. A knee pain relief patch worn over the joint offers steady, drug-free relief you can wear while the knee recovers.
Rest and protect the knee - avoid twisting, deep squats and pivoting
Ice and elevate to bring down swelling in the first few days
It depends where the tear is. The outer third of the meniscus has a blood supply and small tears there can heal with rest and rehab over several weeks. The inner two-thirds has little blood flow, so tears there rarely heal on their own. Many people manage symptoms well without surgery, but a torn area may not fully repair.
How do I know if I tore my meniscus?
A meniscus tear often causes pain along the joint line, swelling that builds over a day or two, and a catching, clicking or locking feeling when you bend or twist. Some people feel a pop at the moment of injury. Only a clinician, sometimes with an MRI, can confirm a tear, so see a doctor if these signs persist.
Should you walk on a torn meniscus?
Gentle walking is usually fine with a minor meniscus tear, but avoid deep bending, twisting, squatting and pivoting, which stress the cartilage. If the knee locks, gives way or is very swollen, rest it and see a doctor before returning to activity. Pushing through sharp pain risks making the tear worse.
Do all meniscus tears need surgery?
No. Many meniscus tears, especially degenerative ones in older adults, are managed successfully without surgery using rest, strengthening and pain relief. Surgery is usually reserved for tears that lock the knee, do not settle with rehab, or occur in active people with larger tears. A clinician weighs the tear type, your age and your activity level.
When should you see a doctor?
See a doctor if your knee locks, gives way, or you cannot fully straighten it, or if swelling and pain do not improve within a week or two. Prompt assessment matters after a twisting injury, especially if you heard a pop. A clinician can confirm the tear and advise whether rehab or surgery is right for you.
A quick, honest note. This guide is for general education and does not replace a diagnosis from a qualified clinician. mLab makes natural pain-relief patches and support devices - they can ease day-to-day discomfort, but they do not treat or repair a torn meniscus. If your knee locks, gives way, or you cannot straighten it, please see a doctor.
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