What we call "shrimp yellow" refers to the yellow part of the shrimp head, but this part may not contain the same organs for male and female shrimp.

For the female shrimp, the "shrimp yellow" includes its ovary and its hepatopancreas, that is, the liver and pancreas. For male shrimp, it is its hepatopancreas, and these organs of crayfish are light yellow and difficult to distinguish.

For the distinction between male shrimp and female shrimp, we only need to look at the abdomen of crayfish. If there are two long reddish claws in the abdomen, it is male shrimp, otherwise it is female shrimp.

Therefore, whether it is male or female shrimp, the yellow part of shrimp includes their hepatopancreas, and this part of the organ is mainly the detoxification organ of crayfish, so it is easier to gather heavy metals. Although crayfish has a strong ability to detoxify heavy metals, the heavy metals in the viscera will gradually be transferred to the shell through the viscera, and then discharged through shelling, but there may inevitably be some metabolic intermediates.

So on the whole, it is best not to eat the shrimp yellow of crayfish. In addition, because the shrimp head is easy to gather bacteria and there is residual sediment in the cheeks, it is best not to eat the head of crayfish.