What causes redness on the pads of all ten fingers?

Under normal circumstances, redness on the pads of all ten fingers may be caused by intense physical activity, temperature changes, soft tissue injury, Raynaud's phenomenon, tinea manuum (fungal hand infection), and other factors. If abnormalities occur, it is recommended to seek timely medical evaluation at a hospital to determine the underlying cause and receive targeted treatment. The specific analysis is as follows:

1. Intense Physical Activity

During exercise, the body prioritizes blood flow to active muscle tissues to meet their increased demand for oxygen and nutrients. After exercise ends, blood is redistributed back to previously less-perfused areas such as the fingertips, causing vasodilation and resulting in redness of the finger pads. To prevent this, gradually reduce exercise intensity and perform proper cool-down activities to facilitate smooth blood return and avoid abruptly stopping physical activity.

2. Temperature Changes

In cold environments, the body reduces blood flow to peripheral extremities to maintain core temperature. When returning suddenly to a warm environment, blood vessels rapidly dilate, leading to redness in the finger pads. Avoid sudden transitions from extreme cold to heat, wear insulated gloves to protect the hands, and minimize direct exposure to extreme temperatures.

3. Soft Tissue Injury

When fingers suffer trauma or contusion, soft tissues are damaged, increasing local blood circulation and causing red blood cell leakage, which results in redness of the finger pads. This may be accompanied by pain, swelling, and bruising. During the initial stage of injury (within 24 hours), apply cold compresses to reduce swelling and pain; after 24 hours, switch to warm compresses to promote blood circulation and absorption of bruising. Individuals with severe symptoms should seek medical attention promptly and may require medication or physical therapy.

4. Raynaud's Phenomenon

Raynaud's phenomenon is an abnormal vascular response in which small arteries are overly sensitive to cold or emotional stress, leading to vasospasm. This causes ischemia in the fingertips, turning them white or blue. When blood flow resumes, there is a rapid influx of blood, turning the finger pads red, often accompanied by numbness or pain. Avoid cold exposure, keep hands warm, and if necessary, medications such as prazosin hydrochloride tablets, nifedipine tablets, or amlodipine besylate tablets may be used under medical guidance.

5. Tinea Manuum (Hand Fungus)

Tinea manuum is a fungal skin infection. When the finger pads are infected, symptoms such as redness, itching, and scaling may appear. It is recommended to keep the hands clean and dry, avoid scratching, and apply antifungal creams as directed by a physician—such as clotrimazole cream, ketoconazole cream, or miconazole nitrate cream.

In daily life, it is advisable to maintain warmth, engage in moderate exercise, avoid unprepared intense physical activity, and discontinue contact with or consumption of suspected allergens immediately if allergic reactions are suspected.