
Knee pain is one of the most common symptoms for patients to consult orthopedic surgeons and other specialists.Many people completely ignore the occurrence of unpleasant feelings, assuming that they are age-related and almost natural.However, there are many causes of knee joint pain, because the knee joint has a complex structure and is affected by a variety of external and internal damage factors.Some illnesses are serious and require emergency treatment.
Who is more likely to injure the knee joint?
The knee is made up of several bones that are connected by muscles, ligaments, and tendons.There are also 5 bursae - cavities surrounded by membranes designed to protect the joints.Between the joints of the bones is interarticular cartilage - the meniscus, which helps the knee move freely.Even damage to one area of the knee joint can lead to unpleasant symptoms.
Knee pain is especially common in people with flat feet.This is a foot pathology that destroys the shock-absorbing ability of the limbs.With age, the increased load on the joints leads to the destruction of the joints and the development of inflammatory phenomena - the emergence of pain syndromes.Various types of deformities of the feet and lower legs can have similar consequences.
There are many factors that may cause knee pain to occur more frequently:
- overweight;
- passive lifestyle;
- high exercise load;
- diabetes;
- vascular disease;
- old age;
- Knee surgeries and injuries;
- Increase leg load.

The causes and treatments for knee pain vary widely, as do the severity of feelings.If you have severe knee pain, the cause may be an injury or advanced arthrosis (a severe inflammatory process).Sometimes the symptoms persist, even at rest, and are accompanied by swelling, redness of the skin, and a crunching sound.All these signs should alert a person and compel him to see a doctor.
pain from bruised knee
Among traumatic causes of joint dysfunction, bruises are the most common.Why does my knee hurt if symptoms are preceded by only minor bruising?Even minor injuries can be accompanied by bleeding and swelling of the soft tissue around the joint.As a result, the nerve roots are damaged and pain occurs.
In more severe cases, knee pain worsens when bending and extending the leg and can stop a person from moving due to a sharp sensation in the joint.On palpation, you will notice swelling in the leg; it will feel warm to the touch.How to treat such an injury?You should contact a traumatologist, get x-rays, follow all recommendations, and rest your leg.
The cause of knee pain after common bruising is usually traumatic hemarthrosis.This is an influx of blood into the joint space, causing edema and swelling of the synovial membrane.As a result, the joints fill with blood and become inflamed.Without proper treatment, injuries even at a young age can lead to the development of chronic joint disease.

Other types of knee injuries
If you have pain in your legs and knees and an injury is causing these sensations, the cause may lie in various injuries to the components of the joint.Here are the main ones:
- Meniscal disease.Indicates flattening or tearing of the meniscus.Injuries are especially common among professional athletes, people involved in extreme sports, and family injuries.A person feels severe pain in the knee, the nature of the sensation is stabbing, dagger-like, and the joint loses mobility for a period of time.
- Ligament damage.A torn ligament (sprain) occurs when the leg is twisted, after jumping, or when the limb is extended in an unnatural position.Severe pain occurs, the legs swell, the joints change position and become loose.
- Cruciate ligament rupture.Because these ligaments are located inside the joint, injuries often result in bleeding into the knee cavity.Only a puncture can help draw out the blood and make an accurate diagnosis.
Knee pain is sometimes associated with chronic dislocation of the patella.If the acute injury is not treated, in many patients the dislocation becomes chronic and leads to periodic recurrence.In children, this pathology causes the leg to bend in an X-shape and severely impair its function.Sometimes, the lesions affect the knees of both legs.

knee inflammatory disease
Often, standard treatments for knee pain are ineffective.In this case, it may not be the joint itself that is affected, but the surrounding soft tissue.Thus, tendinitis, or tendon inflammation, can be triggered by increased loading on the limbs, leg injuries, allergies, drug reactions, and more.With this condition, the knee joint usually hurts during the day or night; the pain decreases at night.In the acute phase, joint mobility is severely limited and symptoms persist and cannot be treated with ointments and creams.A sharp sensation may also be observed when palpating the outside of the knee.
If you have frequent knee pain that worsens after hypothermia, the cause may be synovitis—inflammation of the synovial membrane.Inflammatory exudate develops within the joint, causing a sensation of cracking and pain.Pathological causes are diverse:
- autoimmune diseases;
- Metabolic diseases;
- past trauma;
- joint.
Another “popular” condition that causes knee pain is bursitis.This occurs when the bursa (joint capsule) becomes inflamed.In addition to pain, redness, swelling, and increased sensitivity in the patella area are also observed.If bursitis is not treated promptly, it will almost always become chronic.

Tumors in the knee joint
Malignant tumors at this location are rare; pain syndromes become characteristic of them only in advanced stages.More commonly, knee pain is characteristic of benign conditions:
- Baker's cyst.This tumor occurs on the back just below the knee.The skin over the cyst may appear normal and not inflamed; when curved, it may not swell at all.When standing, a clear, soft, elastic structure will appear at the cyst site.It occurs after a unilateral knee injury or cartilage damage.Cysts are often associated with chronic synovitis, arthropathy, and rheumatoid arthritis.Large cysts can not only cause knee pain, but can also severely limit limb movement.Other symptoms include cold, pale skin, goosebumps and numbness due to compression of blood vessels and nerves.
- Meniscal cyst.It occurs in the external or internal meniscus when there is a cavity of fluid inside the cartilage.In this case, the knee gets injured after a heavy load or at the end of the day.Large cysts are evident on the outside part of the joint, and smaller cysts can only be seen with ultrasound or X-rays.
Hoffa's disease is a rare pathology in which fatty tissue in joints turns fibrous and leads to joint dysfunction.Against the background of this pathology, arthropathy often occurs, causing pain in the knee joint.Causes: hormonal imbalance, female menopause.

infectious joint disease
In the case of infection, the knee joint will experience severe pain that will not be relieved by rest.Even genitourinary and intestinal infections can cause complications in the musculoskeletal system, leading to reactive arthritis.Bacteria (Salmonella, Chlamydia, Neisseria gonorrhoeae, etc.) penetrate into the bone and joint cavity with the bloodstream, deposit on the tissue and cause inflammation.The tendons also often become inflamed, causing the knee to swell and feel hot to the touch.
Tuberculosis is a serious disease.Mycobacterium tuberculosis multiplies in bone tissue, causing osteolysis and cartilage and soft tissue necrosis.Without emergency treatment, the knee joint can injure and collapse, and the process becomes more and more extensive.As a result, fistulas develop - cavities with pus, which can drain out and cause damage to the entire body.
An acute, emergent disease is osteomyelitis of the bone.What if you injured your knee and the process is accompanied by weakness, muscle aches, and a fever as high as 40 degrees?If the knee pain is severe or bursting, and the tissue itself is swollen, red, or blue, you should call an ambulance urgently and go for emergency surgery.Otherwise, you could lose your legs or die.

Knee Pain – Degenerative Causes
After the age of 50, many people will experience knee pain.Its prerequisites are the aging of the body, wear and tear of the joint organs and the development of the most common pathology - osteoarthritis (knee joint disease).It causes thinning and destruction of cartilage and changes the shape of bones.Most often, in the early stages of the pathology, there is pain on one side of the knee; after a few years, the lesions become bilateral.Leg stiffness bothers me in the morning but goes away quickly.The sensation may be heightened after physical exertion, strenuous exercise, or long walks.
In advanced stages, the joint tissue collapses and osteophytes grow into both sides of the joint space.These are spines made of bone tissue that, in severe cases, can break off and cause excruciating pain.There are many other degenerative conditions with symptoms similar to those of knee arthritis:
- Osteochondrosis.Affects the articular surfaces of bones associated with injury and movement.It can occur in teenagers for no apparent reason.
- arthritis.It can be rheumatoid, psoriasis, gout, and cause chronic inflammation and joint destruction.
- Chondromatosis.The cause is unknown.This disease causes nodules to develop on the synovial membrane, which limits the movement of the knee and causes pain.
Menopausal women often experience knee pain due to osteoporosis—the thinning of bones, increasing their fragility.The disease is accompanied by leg cramps, spinal pain and periodic fractures.

Other causes of knee pain
When you injure your knee, the cause of the sensation may also lie in damage to the peripheral nervous system.Therefore, neuropathy of the sciatic nerve in the context of lumbar spine injury can lead to many symptoms.People suffer from knee pain, hip pain, weakness in the joints of their limbs, and impaired skin sensitivity.Leg reflexes may also change.
Sometimes, the entire knee joint hurts due to vascular disease.Only during adolescence do you not have to worry too much - due to the rapid growth of the body, blood vessels do not have time to supply blood to the bones.As we age, the condition of the joints gradually returns to normal - usually by the age of 18-20, the pain stops completely.
As I get older, I have atherosclerosis and my knees often hurt. What should I do in this situation?If fat is not metabolized properly, plaque will continue to accumulate in the arteries.The blood vessel becomes clogged and stops supplying full power to the connector.In which joints appear, pain becomes chronic.Varicose veins, thrombophlebitis, and blood vessel clots may also cause discomfort in the knee area.
How is the diagnosis made?
People often experience knee pain; treatment can only be determined after examination.Severe and constant pain in the knees is a characteristic of many conditions, some of which are very dangerous.For diagnosis, you should contact a surgeon, orthopedist, neurologist, rheumatologist, or traumatologist.He will conduct an investigation to find out the exact symptoms of the disease and identify accompanying symptoms.In addition, during the initial appointment, the doctor will perform a series of tests and physical examination to determine the nature of the problem.
What should I do if my knee hurts? What instruments and methods can help find out the cause?Usually stipulates:
- ultrasound;
- MRI;
- CT;
- Radiography.
The choice of exact technique should be determined by the physician.Therefore, ultrasound can provide a good reflection of changes in the legs due to joint and meniscus damage.X-rays perfectly show bone deformation and the presence of osteophytes.MRI and CT provide complete information; they are indispensable for complex diseases.In addition, the doctor will perform blood tests to rule out inflammation and rheumatism and, if necessary, perform a joint biopsy.For osteoporosis, a bone densitometry is required - it will show the patient's bone density.

Treat knee pain
If the pathology is traumatic in nature, treatment is performed by a traumatologist, sometimes in a hospital.Minor bruising will disappear on its own within a few days; to quickly eliminate hematomas, it is recommended to apply an absorbable ointment to the knee.If pain occurs, an ointment containing nonsteroidal anti-inflammatory ingredients should be applied.
How to treat knee pain caused by inflammatory lesions?In the acute stages of bursitis, synovitis, and arthritis, the affected leg needs to rest; ice can be applied for 15 minutes for the first 3 days.Severe pain can be relieved by injections of nonsteroidal anti-inflammatory drugs and injections of anesthetics directly into the joint.To prevent chronic inflammation of the joints after the pain subsides, physical therapy and exercise therapy are needed.

When a person suffers from knee pain due to knee joint disease, what should he do in this situation?The mainstays of treatment are chondroprotectants and hyaluronic acid injections.These medications are designed to restore nutrition to the joint cartilage so that it stops deteriorating.In addition, for knee rehabilitation, the following must be followed:
- Vascular Drugs;
- physiotherapy;
- gymnastics;
- massage;
- Vitamin complex.
Infectious diseases of the joints are an indication for the introduction of antibiotics into the joint space or oral medications.In some cases, surgery is required to remove the tissue affected by the pus.Advanced arthropathy with osteophytic proliferation can also be treated with surgical intervention.Sometimes, simply replacing a joint with a prosthetic limb can preserve a person's ability to walk normally.


























