Poor circulation occurs when there is not enough blood supplied to an area to meet the needs of the cells. Poor circulation to the hands and feet causes symptoms such as the sensation of tingling or numbness, cramping and the feeling of coldness in the fingers and toes.

Rashes and uncomfortable skin conditions that appear on top of the feet typically are different than skin disorders that attack other parts of the foot, such as warts or corns, according to Skin Sight. Skin rashes on top of the feet usually are related to disorders that affect the entire body.

Damage to the structures of the knee commonly causes inflammation and swelling, also called fluid on the knee. The swelling may occur suddenly after a traumatic injury to the knee, or it may be a long-term problem for patients with gout or arthritis.

Knee replacement surgery involves replacing a damaged knee joint with an artificial joint. As with any surgery, knee replacement poses risk for post-surgical infection.

Climbing stairs provides an effective workout whether you're scaling steps in a building or using a stair climber. The activity does come with risks to your knees, however. You need to know the potential signs and symptoms of troubling knee conditions and try to prevent them with exercises to strengthen the knees.

Joint pain caused by food usually stems from a condition called gout. Gout is caused by high levels of uric acid in the body, which crystallize and leave deposits in joints and tissues, leading to inflammation that causes joint pain and stiffness.

Joint pain occurs as a symptom of many autoimmune diseases, in some conditions as a primary defining symptom of the disease, and, in others, as a secondary symptom that occurs in more advanced or longstanding cases, or as one of an array of possible manifestations.

Foot cramps are very painful muscle cramps. They can strike while you are moving or attack while you are sleeping. A foot cramp feels like the muscles and tendons in the bottom of your foot are pulled very tightly and the sharp pain cannot be ignored.

Tendons are tissues that connect muscles to bones. When a muscle contracts the force is transmitted through the tendon, which then pulls on the bone to make movement occur. The wrist joint is subjected to a lot of movement and the tendons in this area can become inflamed or irritated, causing pain and stiffness.