Knee pain is a hallmark symptom of osteoarthritis and can range from mild to severe. Pain may be constant or intermittent, and it can worsen with activities such as walking, climbing stairs, or standing for prolonged periods. This pain can limit mobility and make it difficult to perform everyday tasks.

Osteoarthritis can cause stiffness in the knee joint, especially after periods of inactivity or rest. This stiffness can make it challenging to bend or straighten the knee fully, affecting mobility and flexibility. As a result, activities like getting in and out of chairs, vehicles, or bed may become more difficult.

The pain, stiffness, and reduced range of motion associated with knee OA can lead to decreased mobility and functionality. Individuals may find it challenging to walk long distances, climb stairs, participate in physical activities, or perform routine household chores. This can result in dependence on assistive devices such as canes or walkers to maintain stability and balance.

Knee OA can interfere with a person's ability to work, particularly if their job requires standing, walking, or lifting heavy objects. Likewise, participation in leisure activities such as sports, exercise, or hobbies may be limited due to pain and physical limitations. This can lead to feelings of frustration, isolation, and a reduced quality of life.

Knee pain and discomfort can interfere with sleep, making it challenging to find a comfortable sleeping position or stay asleep throughout the night. Sleep disturbances can contribute to fatigue, irritability, and difficulty concentrating during the day, further impacting overall well-being.

Living with chronic pain and physical limitations can take a toll on a person's emotional well-being. Individuals with knee OA may experience feelings of frustration, sadness, anxiety, or depression as they navigate the challenges of managing their condition and adapting to lifestyle changes.

The limitations imposed by knee OA, such as difficulty walking or participating in social activities, can lead to social withdrawal and isolation. This can impact relationships with family and friends, as well as reduce opportunities for social engagement and participation in community events.