Crustacean diseases are health issues that affect various species of crustaceans, such as shrimp, crabs, and lobsters. These diseases can be caused by pathogens like bacteria, viruses, and parasites, leading to symptoms such as lethargy, discoloration, and abnormal growth. Environmental factors, including water quality and temperature, also play a significant role in the health of crustaceans. Management of crustacean diseases often involves monitoring water conditions and implementing biosecurity measures to prevent outbreaks. Treatments may include antibiotics for bacterial infections or specific medications for parasitic infestations. Understanding these diseases is crucial for maintaining healthy populations in both wild and aquaculture settings.