Finger swelling is usually harmless, but be aware that it is a sign of disease. So, do you know the causes of finger swelling?
Causes of finger swelling
1. It's hot. Heat dilates blood vessels so that the skin emits heat. When blood vessels dilate, some of the fluid will leak into the soft tissue, resulting in edema. If you continue to engage in daily activities with your hands, this swelling will gradually disappear.
2. Excessive salt intake. When the human body takes in too much salt, in order to maintain the balance of water and electrolyte in the body, the human body needs to take in more water, which leads to swelling. Generally, slight swelling caused by salty food will dissipate by itself within a day. If swelling persists after reducing salt intake, seek medical attention.
3. arthritis. If the swelling of bones and joints makes it impossible to wear the ring, especially in the morning, osteoarthritis may be the culprit. It is caused by the wear of the joint end, often accompanied by pain, stiffness and other symptoms, and its incidence rate increases with age.
4. Carpal tunnel syndrome. In addition to swelling, carpal tunnel syndrome is often accompanied by pain, burning or tingling, numbness of fingers and other symptoms.
5. Lymphatic blockage. Lymphedema is a disease characterized by limb enlargement. This disease occurs when lymph cannot carry waste and pathogens out of the body. The patient's fingers and toes may be swollen. In addition, the patient's arms and legs will also be swollen, and the skin feels tighter and thicker than usual. The disease is usually associated with breast cancer surgery or radiotherapy, and in rare cases it can also be caused by abnormal growth of lymphatic system.
6. Raynaud's disease. Raynaud's disease is a spasmodic disease of acral arterioles caused by vascular and neurological dysfunction. When the weather is cold, the blood circulation usually increases and becomes irritated. A blue or pale finger or hand before swelling is a sign of Raynaud's disease.
7. Pregnancy complications. Swelling is a common manifestation of pregnant women, but it may also be a signal of preeclampsia. The latter is generally accompanied by elevated blood pressure, which is most likely to occur in pregnant women over 40 years old, pregnant with multiple births and obesity.
Why do your hands swell when running
Your fingers will feel swollen when you run. Why? How to prevent? Is this related to dehydration?
Swelling of fingers and hands during running is a common phenomenon, although sometimes slight. When the temperature is high, it is likely to occur more frequently, but this is not a sign of dehydration, and if you are really dehydrated, hand swelling is likely not to occur. Hand swelling is one of the symptoms of hyponatremia, which is easy to occur when runners replenish too much water during running for 4-6 hours.
During exercise, blood circulation speeds up, and the capillary network of the hand expands. As blood flow increases, there will be some fluid leakage between cells. (we think of blood vessels as soft rubber hoses in the garden, but in fact, leakage can occur between blood cells, and this leakage will increase with the increase of blood circulation.) This leakage is likely to be the cause of finger swelling.
The action of swinging the arm during running increases the air flow above the skin, and this action may also be one of the reasons for the accumulation of liquid in the hand.
These fluids will eventually be reabsorbed by the cells or cleared away by the lymphatic system. This process will take place when you run, but the clearing speed is slower than the generation speed. When you finish exercising, these fluids will be reabsorbed by blood vessels or surrounding cells, or cleared by lymph.
If you find that hand swelling is more severe in hotter weather, you may need to choose to exercise for a long time in the cooler part of the day. And you also need to take off your rings while running. Don't let them get stuck when your hands are swollen.