There are many causes of joint pain, including rheumatism and chronic arthritis that can also cause joint pain, including many orthopedic diseases, trauma, and even certain malignant diseases such as leukemia or other tumors with bone metastases. There are many causes of joint pain, which generally do not have diagnostic value and are at best considered signals that suggest a disease of the joints or bones. For growing pains, which are usually the most questionable, they may occur in a higher percentage of adolescents during the rapid growth period. It is generally understood that growing pains only occur at night and that they are often confined to the knee joint. Even if the pain is severe at night, it does not interfere with the next day’s activities, there are no signs, there is no swelling or increase in surface temperature in the painful area, and it does not last long enough to be relieved by pressure.