What is an ACL Tear?
An ACL tear is a common knee injury. The ACL, or anterior cruciate ligament, is a strong band inside your knee. It helps keep your knee stable. When this ligament tears, it is called an ACL tear or ACL rupture. Many people get ACL tears during sports or sudden movements. This injury can make walking or running hard. If you have an ACL tear, you may need special care to heal.
Common Symptoms of ACL Tears
ACL tears often cause clear signs. However, some symptoms may be mild at first. Knowing what to look for can help you get help quickly. Common symptoms include:
Sometimes, people notice swelling and pain right away. But, in other cases, symptoms may get worse over time. If you notice these signs, seek medical help.
Causes and Risk Factors
ACL tears can happen for many reasons. Most often, they occur during sports or activities that involve sudden stops or changes in direction. For example, soccer, basketball, and football players are at higher risk. Other causes and risk factors include:
Because these factors increase your risk, it is important to stay aware during sports and exercise.
How ACL Tears are Diagnosed
Doctors use several steps to diagnose an ACL tear. First, they ask about your injury and symptoms. Next, they check your knee for swelling, pain, and movement. Often, doctors use special tests to see if the ligament is loose. In many cases, they order imaging tests, such as:
Early diagnosis helps you get the right treatment. According to the CDC, quick care can prevent further knee damage.
Treatment Options for ACL Tears
Treatment for ACL tears depends on your age, activity level, and how severe the injury is. Some people heal with rest and therapy, while others need surgery. Common treatment options include:
Most people need several months to recover. The World Health Organization notes that following your treatment plan helps you return to normal activities safely.
Prevention Tips for ACL Tears
While not all ACL tears can be prevented, you can lower your risk. Try these tips to protect your knees:
With these steps, you can help keep your knees healthy and strong.
Lifestyle and Recovery Guidance
After an ACL tear, recovery takes time and patience. However, you can support healing by following your doctor’s advice. Here are some helpful tips:
Most people return to normal activities after several months. But, everyone heals at their own pace. Always talk to your doctor before returning to sports or heavy activity.
Consult an orthopedic specialist for personalized advice on ACL tears.

