Why does it hurt in hot weather?

There are many reasons for swollen feet. If the foot is swollen and there is no other discomfort, it may be beriberi, which is caused by the lack of vitamin B 1. As long as it is properly supplemented. If your feet, especially your big toes, feet, eyes and knees suddenly become red, swollen and painful, and your joints get hot, and even you almost jump up in pain once, it may be gout. The main reason is that uric acid is too high in the body can't be excreted from urethra or feces, so uric acid swims around the whole body, and most of it enters the joints, causing inflammation. The prevention method should start with diet and avoid eating fat and high cholesterol foods and animal offal. If your joints are often swollen, you feel indescribable pain and inconvenient to move, but the swollen part is not depressed when pressing, which may be rheumatic swelling. The cause of rheumatism is very complicated, which is simply caused by long-term deficiency of qi and blood. If you gently press the heel and instep, the swelling will sag and the muscles will lose their elasticity, which is edema. The cause can be the decline of renal function, so that water is stored in the body and cannot be excreted. Edema (that is, water leaks from blood vessels and accumulates in the lungs, affecting breathing) can also cause edema. In addition, if liver cells are widely necrotic and form cirrhosis, it will cause other diseases, such as ascites, that is, water accumulates outside the intestine and cannot be absorbed. People with ascites also have swollen feet. If the function of kidney, lung and liver is abnormal, they often interact with each other and have serious consequences. These are just some of the causes of swollen feet. Everyone's physique is different, so we can't generalize. No matter what causes the edema of the feet, it means that the body is weak. It can be said that the alarm bell has sounded and must not be ignored.