Gesundheit & Schönheit

Knieschmerzen beim Beugen des Knies: Warum schmerzt das Knie beim Beugen?

Do you have knee pain regularly despite having no significant trauma or triggering event? Have NSAIDs, rest, and physical therapy failed to relieve your symptoms? Every day, your knees bend multiple times and you can experience knee pain when bending knee. In this article we will discuss reasons why knee hurts when bent.

Arthritis, tendonitis, bursitis, or patellofemoral pain are common causes of knee discomfort that worsen with bending or flexing the joint.

Your knee pain may be the result of getting into the car, sprinting up the stairs, chasing kids down the hall, sitting incorrectly, or sitting for an extended period. For the majority of individuals, sitting on their heels or with their legs crossed will cause knee discomfort.

These poses place strain on the knee joints, which may be painful. But if you have discomfort even when bending your knee or lowering yourself to sit on a chair, you should have your knee checked out.

Your health care provider will take into account the location of the pain as well as the activities that make it worse when evaluating the cause.

Why Do I Have Knee Pain When Bending My Knee?

There are other causes of knee pain other than underlying illnesses. Knee pain is most often caused by overuse, trauma, or overexertion injuries. When we don’t know the precise cause of knee pain, which affects many Americans when bending, it might be an issue.

Every day, you bend your knees several times. Daily tasks like sitting in a chair and climbing stairs require movement. When performing workouts like squats and lunges, you also bend your knees.

Your knees may suffer from the wear and strain of daily life. In addition, there are several bones, muscles, tendons, and ligaments nearby.

If one of these components isn’t working properly, bending your leg may cause knee discomfort and knee pain when bending knee..

According to experts, when we bend our knees or put them in a body weight-bearing posture, we may experience four to six times as much pressure for every pound we weigh. As a result, bending, climbing stairs, and crouching may cause particular knee regions to hurt.

What Does It Feel Like To Hurt Your Knee?

A knee injury may result in a scorching, acute, or dull ache, depending on the actual reason. Your knee can swell and feel sensitive to the touch.

Additionally, you can find it difficult to bend, straighten, or put extra weight on your knee, and you might have knee sticking (locks). When you attempt to walk on your injured knee, it may seem as though it is ready to give way.

Top Reasons Knee Hurts When Bent

Several disorders might cause knee pain. It’s critical to understand the source of your knee pain. The ideal treatment plan will be possible as a result. The following are the common causes of knee pain:


Bending can be painful due to arthritic joints that are inflamed. Arthritis may be to blame if the discomfort occurs in the morning or after spending a lot of time sitting down. Pain from arthritis can be reduced with gentle activity. The signs and symptoms of knee arthritis change over time and might include stiffness, swelling, soreness, and muscle weakness.

According to the CDC, approximately 35 million individuals worldwide suffer from osteoarthritis, which is one of the different types of arthritis and the most prevalent kind of joint inflammation.

The form of arthritis known as “wear and tear” occurs when the cartilage in the knee joint is continually worn down.

Although older adults over the age of 65 are the group that encounters osteoarthritis the most, young adults of 25 can develop symptoms of the condition due to a variety of factors, including food, genetics, obesity, and prior traumas.

Knee Ligament Injury (Ex. ACL Tear)

Knee Pain When Bending Knee
Knee Ligaments

Knee pain from a sprained ligament might be felt when bending or squatting. When engaging in physical activity, twisting or bending motions might cause ligament injuries.

When you move your knee one way while the upper or lower leg turns in the other direction, the ligaments — soft tissues that hold bones together and provide them stability—can get ripped or overstretched.

With enough time and rest, a strained ligament will recover. To keep the joint immobile while it heals, you might need to wear a brace.

Surgery could be needed for a torn ligament. The appropriate course of action for your ailment might be suggested by your doctor.


The knee is supported by many tendons. Any of these tendons that are inflamed (tendonitis) might result in knee discomfort when the leg is bent.

Hamstring tendonitis, which produces discomfort on the back of the leg and beneath the knee while bending, is one example of a pain that may be identified by its location and kind. When bending, Patellar tendonitis, which is felt at the front of the knee or the base of the knee cap due to patellar dislocation, and Quadriceps tendonitis, which produces discomfort above or in front of the kneecap, both cause excruciating, searing agony.

Meniscus Damage

The meniscus is a c-shaped shock absorber located between the thigh bone and the shin bone (tibia) (femur). It is made of fibrocartilage and works to stabilize the knee while also absorbing the stresses of daily activities.

Each knee has two menisci: one on the medial (inside) and another on the lateral (outside).

The most frequent injury is a torn meniscus. The outcome of recent injuries can be degenerative in nature. Swelling and dysfunction can be brought on by meniscus tears. When you bend or straighten the knee, meniscal tears can also cause pain.

Knee meniscus tears can be radial, horizontal, partial, flap, buck handle, or complicated, among other forms.


Knee Hurts When Bent
Healthy vs. Inflamed Bursa

Under the skin above your joint, a bursa is a fluid-filled sac that contains synovial fluid. The friction decreases as the joint moves.

Overuse, mishaps, or repetitive bending and kneeling might irritate the bursa on top of your kneecap.

Edema and pain result from this. Physicians refer to this condition as prepatellar bursitis. Additionally called the “preacher’s knee.””


Overuse injuries to the knee develop gradually over time rather than as a result of one particular event. You could find it difficult to straighten your leg or bend your knee.

The discomfort might be in the front or rear of the knee and is worse when crouching, jogging, or sitting for a long time.

By adequately stretching before any physical exam, strengthening the muscles surrounding the knees, or using a brace, you can decrease knee pain from overuse. Injections of steroids may be suggested by a doctor to reduce pain and inflammation.

overuse’s root cause Knee discomfort can result from knee injuries from overtraining, weak muscles in the legs, high foot arches, tight muscles in the thighs or hips, misaligned legs, or incorrect leg alignment.

Bone Injury

The patella, femur, and tibia are the three main bones of the knee. Trauma can cause damage to bones. Subchondral edema, commonly known as bone swelling, can result from recent trauma.

Avascular necrosis, commonly known as “bone death,” can occur as a result of long-term bone damage. Any type of injury can result in severe pain, which frequently gets worse at night.

PRP and bone marrow concentrate injections into the bone have been used to successfully treat various bony injuries at the Centeno-Schultz Clinic (intraosseous).

Baker’s Cyst

In the rear of the knee joint lies a sac filled with fluid called a Baker’s cyst, which can also can be the reason your knee hurts when bent. A cyst that protrudes into the back of the knee is caused by excessive knee-joint fluid pushing through the joint capsule (popliteal fossa). It produces a noticeable protrusion and is occasionally referred to as a popliteal cyst. 9 Baker’s cyst symptoms are like those of deep vein thrombosis, potentially fatal blood clots in the blood vessels, and should be assessed by a medical professional.

When you move around, Baker’s cysts near the rear of the knee joint hurt and swell more. When bending or straightening, the discomfort is frequently reported as joint tension and stiffness.

Tear of the Cartilage

Your thigh and shin bones have a smooth layer called cartilage that helps your knee to move painlessly and smoothly. Your bones are protected from the strains and tensions of daily life by this flexible connective tissue.

Unfortunately, it is vulnerable to damage and aging. Wear and tear, repeated range of motion, and trauma are the three main causes of cartilage degradation.

Pain in Knee Due To Rheumatoid Arthritis

Knee Hurts When Bent
Healthy Knee Vs Rheumatoid Arthritis

Pain in the knee can be a symptom of rheumatoid arthritis or other type of arthris. This type of inflammatory arthritis is caused by the body’s immune system attacking healthy cells.

Rheumatoid arthritis attacks multiple joints throughout the body, including the knee. Symptoms of this disease can include stiffness, pain, and swelling.

The pain and swelling of arthritis can also damage cartilage. Cartilage helps the bones stay in their proper positions. Whenever the cartilage is damaged, the bones begin to rub against each other. If left untreated, osteoarthritis can lead to joint immobility.

Pain Relief And Treatment of Rheumatoid Arthritis

Pain in the knee can be managed through medication and other methods if your knee hurts when bent. Anti-inflammatory drugs can be used to relieve swelling and reduce the pain. Some people with RA may need to wear a brace to keep pressure off the joint. Other patients need crutches or a cane.

Knee surgery can help treat arthritis. Many surgeries increase flexibility and improve the quality of life for those with the condition. However, it can take several days for the knee to recover.

Joint repair is usually the last resort. However, in addition to restoring mobility and strength, it can stop further damage to the joint.

For mild forms of the disease, medications, such as nonsteroidal anti-inflammatory drugs (NSAIDs), can be taken to relieve pain. Some patients need to take a prescription steroid to reduce inflammation.

Using heat, such as a hot water bottle or a warm compress, can also alleviate joint pain. Keeping the knees warm can also relax the muscles and help blood flow to the area.

Pain in Knee Due to Runner’s Knee

If your knee hurts when bent, it can also be caused by Runner’s Knee. Runner’s knee is a condition that causes pain on the front or back of the knee, usually beneath the patella. It can be caused by a number of factors, including inflammation or a weak quadriceps muscle.

If you’re experiencing pain in your knee when bending, there are several things you can do to relieve it. One of the first things to do is to rest the knee. This can help relieve the swelling and make the pain less noticeable. You should also consider cold packs, compression, and elevation.

Runner's Knee
Runner’s Knee: Pain In The Patella

If the pain persists, see your doctor. He or she may refer you to a physical therapist, who can recommend stretches and other treatments.

Your doctor can prescribe anti-inflammatory drugs to help ease the pain and decrease the inflammation. However, you should be aware that these medications can have interactions with other prescription medicines.

An orthopedic surgeon can replace damaged cartilage or adjust the position of your kneecap. Infrapatellar strapping can also be helpful.

If you suspect that you have runner’s knee, consult with your doctor. They may do an MRI or X-ray to look at the joint structure.

A good way to prevent runner’s knee is to strengthen the thigh and hip muscles. Then, you can keep the knee joint healthy and free from problems.

When you feel knee pain, it’s important to stop your activity. If you continue to run, you will only make the problem worse.

Until you’re no longer experiencing knee pain when bending knee, you should do stretches and other exercises to strengthen your joints. Once you’re no longer experiencing pain, you can start increasing the distance you run.

Knee Pain Prevention

Knee problems and accompanying knee discomforts are sometimes unavoidable. As long as you extend your legs before and after working out and stop if you experience any knee pain, you can lower your risk. Additionally, you should slowly increase the intensity of your workout program rather than suddenly.

With a few easy adjustments to your everyday activities, you can stop knee discomfort when bending and additional harm to the joints, anterior cruciate ligament, and tendons.

  • Exercise: Maintaining a regular exercise regimen will keep your muscles strong and able to support your joints.
  • Physical therapist: Expert advice on specific exercises to treat knee pain reasons can be helpful for older people with chronic knee pain.
  • Stretching: Stretching will improve flexibility, even on days when you don’t exercise.
  • Keep your weight in check: Lose the extra weight to relieve pressure on your knees.
  • Orthotics: Knee braces can aid in recovery by stabilizing the joints. Shoe inserts can provide your feet with more support and keep your legs straight.
  • Proper shoes: Wear the correct shoes to keep your body in alignment and prevent knee injury.

How Can Knee Pain Be Treated?

If your knee hurts when bent, home remedies, including rest, ice packs, bandaging or bracing, and elevation, can frequently be helpful. Stretching or strengthening exercises, together with over-the-counter anti-inflammatory drugs, and patellofemoral pain syndrome, can also frequently help to reduce pain and help knee pain when bending knee, provided your doctor gives the go-ahead.

Make sure to consult a doctor if your symptoms get worse or don’t go away.

Will my knee start to feel better soon?

Your injury will determine how long it takes to heal. Also, some people heal more quickly by nature than others.

Ask your doctor whether you can engage in any activities that won’t make your knee pain worse while you recover. For example, runners should consider swimming or other low-impact aerobic activities.

Take your time with whatever you do. Wait until you experience these symptoms before attempting to resume your usual level of physical exercise.

When you bend or straighten your knee, you don’t experience any pain.

If you jog, run, walk, or leap, your knee doesn’t hurt.

The damaged knee is just as powerful as the other one.

Take your time with whatever you do. Wait until you experience these symptoms before attempting to resume your usual level of physical exercise.

  • When you bend or straighten your knee, you don’t experience any discomfort.
  • If you walk, jog, run, or leap, your knee doesn’t hurt.
  • The damaged knee is just as powerful as the other one.

In Conclusion

Every day, we flex and extend our knees countless times. Different kinds of knee pain can appear in various locations. Examples include the back of the knee, inside, outside, and behind the kneecap.

You don’t have to put up with discomfort, especially if going about your everyday business hurts your knee when you bend it.

Make an appointment with a doctor to discuss your medical conditions and treatment options for your knee pain if you have tried at-home cures but are still experiencing pain in your knees.

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