caisson disease is also known as divers disease. in this when a diver dives into the sea then due to high pressure solubility increases and thus oxygen and nitrogen's solubility incresaes. when the diver is coming at the surface due to low pressure solubility decreases and the solubility of nitrogen decreases.due to this nitrogen try to escape out from the blood capillaries by forming bubbles which creates blockage and a painful effect is created known as bends.