👉 A thorough fluid, also known as lymphatic fluid, is a clear, colorless liquid that circulates through the body's lymphatic system, which is an essential part of the circulatory and immune systems. Unlike blood, which flows through veins, lymphatic fluid moves through a network of vessels and nodes called lymphatics. This fluid is primarily composed of water, proteins, sugars, and waste products, and it plays a crucial role in maintaining fluid balance, absorbing fats from the digestive system, and transporting white blood cells to fight infections. Lymph nodes filter out harmful substances and pathogens, while also producing lymphocytes that are vital for the immune response. Any disruption in this fluid's production or circulation can lead to various health issues, including lymphedema and increased susceptibility to infections.