The causes of hot feet are as follows: 1. If the heart of the foot is hot unilaterally, accompanied by slight pain, you may have to pay attention to local infection or gout, or even osteoporosis, osteophytes and other causes in the elderly; 2. If the heart of the foot is hot bilaterally, some people also have hot palms, which may be caused by certain diseases, such as the more common tuberculosis, which can be pulmonary tuberculosis, but also tuberculosis in other parts of the body, the heart of the hand, the In addition, when one has a cold and fever, the palms of the hands and feet can also be hot; some people may have a physical cause that makes them more prone to hot feet and hands. If there are obvious abnormalities or there was no fever in the heart of the feet or the palms of the hands in the past, but it happened suddenly recently, it may not necessarily be a physical cause, and it may be necessary to see a doctor for diagnosis. If there is a cause, treat it accordingly, especially if there is an acute infection or tuberculosis, which can delay the condition if left untreated.