blood pooling – MySymptom

Why do my hands get bright red and hot when hanging down by my sides?

1. Introduction Bright red, hot hands when hanging by your sides are a physiological response to gravity causing venous blood to pool in the expanded capillary beds of the extremities. When your arms are lowered, the low-pressure veins struggle to pump blood upward against gravity without the assistance of active muscle contractions. This fluid accumulation … Read more

Why Do My Feet Turn Blue When I Stand Up in the Shower?

1. Introduction Feet turning blue when standing in a warm shower is typically a benign vascular phenomenon known as dependent acrocyanosis or blood pooling. The combination of gravitational pull and the heat from the water causes the peripheral veins to dilate widely, allowing deoxygenated blood to pool sluggishly in the lower extremities. While often harmless … Read more