Knee pain often begins as a minor twinge. Osteoarthritis of the knee is a progressive condition in which the cartilage in the joint slowly breaks down, so symptoms that go untreated tend to worsen rather than resolve. Varicose veins are large, twisted blood vessels. They usually appear in the legs; they are often painful. Some people ignore the early signs; the discomfort fades for a while before it returns. The sections that follow describe how the condition advances, which physical effects develop, and what related complications appear in the joint and the legs.
Progression of Joint Damage
Cartilage cannot grow back once it wears down. It covers the ends of the bones and absorbs shock, so the joint loses protection as the condition advances through predictable stages. The early stage brings wear and tear; pain often goes unnoticed. Many people stay active during this phase because the joint still moves with little discomfort. The condition then moves through mild and moderate stages, cartilage shrinks further, pain grows during activity, and stiffness sets in after rest. Each stage leaves less cushioning between the bones than the one before it. The severe stage leaves the cartilage nearly gone, and the bones grind against each other.
Reduction of Joint Movement
Pain ranks as the most common symptom of knee osteoarthritis. It occurs during pressure, motion, or rest, and the joint functions poorly as the damage advances. The knee feels stiff or swollen; a cracking or grinding noise occurs during motion; the joint sometimes locks or feels stuck as mobility declines. Walking grows harder, and the most advanced cases lead to disability.
Development of Varicose Veins
Not all leg symptoms come from the knee joint. Varicose veins are large, twisted blood vessels that usually appear in the legs, and they are often painful. These veins point to chronic venous insufficiency, a condition that involves defective vein valves. When the valves do not close properly, blood collects in the veins; the extra blood stretches the vein walls. Other signs include swelling, skin discoloration, ulcers, and leg heaviness, so persistent leg symptoms deserve a closer look to identify whether the cause sits in the veins rather than the knee.
Long-term knee problems extend beyond the joint itself. Support muscles weaken as people use the knee less, which creates joint instability and raises the risk of injury; friction on the bones produces bony lumps called bone spurs that add irritation. A Baker’s cyst forms behind the knee. Joint fluid becomes trapped in a bulge at the back of the joint; the resulting cyst marks another long-term complication.
Seek Early Knee Care
Early treatment offers the best chance of slowing progression. Cartilage continues to break down as the condition advances, so the pain, stiffness, and loss of mobility grow with it. Joint instability, bone spurs, and a Baker’s cyst compound the damage; severe cases end in disability; leg symptoms tied to chronic venous insufficiency add another reason to seek a clear diagnosis. Talk with a healthcare provider at the first sign of new or worsening knee pain.


