Your lower legs are swollen and red
When someone is suffering from congestive heart failure, their weakened heart struggles to keep the blood moving against the pull of gravity. As a result, the blood can pool in your legs, explains Dr. High.
Seeing deep lines after taking off your socks is another sign, he says.
That said, congestive heart failure is most likely to affect the elderly; if you’re a young person and have sock lines, your socks just might be too small.
