Vitiligo patients can eat crabs properly, but because the merchants in the market now cook crabs for profit, in order to make money, they cook crabs in disguise or directly with some dead crabs. There are many such practices in the market. Therefore, people will get sick if they eat it. Especially vitiligo patients.

First of all, don't eat raw crabs. Shrimp and crab in the river feed on green mud and animal carcasses or humus, and their gastrointestinal tract and gills are full of bacteria and sludge. Crabs often carry paragonimiasis and Vibrio parahaemolyticus. Without high temperature disinfection, paragonimiasis will cause lung injury after entering vitiligo patients. If Vibrio parahaemolyticus invades human body in large quantities, infectious poisoning will occur, which is manifested as intestinal inflammation, edema, congestion and other symptoms. So eating raw crabs is easy to make people sick.

Secondly, don't eat cooked crabs that have been stored for too long. Cooked crabs, if left for a long time, are not only cold and fishy, but also easy to deteriorate. If you really need to raise it, you must steam it or cook it in a pot before eating it. Similarly, it is best not to buy cooked crabs in the market. You can buy some live crabs and make them yourself. This is cleaner and more hygienic, and it is safe to eat.

Finally, don't eat dead crabs, because after crabs are caught, glycogen is exhausted and lactic acid is increased due to struggle. After death, the bacteria in the crab will multiply rapidly and spread to the crab meat. Under weak acid conditions, bacteria will decompose amino acids in crabs and produce a large number of histamine and histamine-like substances. Histamine is a harmful substance that can cause allergic food poisoning; Histamine-like substances can cause vomiting, abdominal pain and diarrhea in patients with vitiligo.