Although this is not always the case, many people who are allergic to one form of seafood may not be allergic to another.
For instance, if you are allergic to scaly fish, you may not be allergic to crustaceans. Talk to your medical care professional about the possibility of cross-reactions in seafood.
Scaly fish, crustaceans and mollusks are often the cause of allergic reactions. Of those who are allergic to fish or shellfish, the majority are adults.
A seafood allergy is usually a lifelong condition.