Transaction Mempool Congestion

Transaction mempool congestion occurs when the number of pending transactions awaiting inclusion in a block exceeds the capacity of the network to process them. The mempool acts as a waiting area where transactions sit before being picked up by validators.

When this area becomes overcrowded, it leads to a backlog, forcing users to increase their priority fees to get their transactions processed. For financial derivative protocols, severe congestion can freeze liquidity and prevent traders from closing positions, leading to unintended exposure.

This phenomenon is a direct consequence of limited throughput and fluctuating demand, serving as a key indicator of network stress. It is a critical factor that traders monitor to gauge the current state of market liquidity.