Dysentery

 Dysentery, sometimes known as the "bloody flux," is a very unpleasant subject.  But it's important for medieval history because so many important people died of it.  It didn't kill millions within a short period as the Black Death did, but it was a constant concern.

Dysentery of course remains a concern today, especially in developing countries, although the most common (bacterial) form can be cleared up with antibiotics, as long as the sufferer is not too badly dehydrated.  (There is also a harder to treat amoebic version.)  It is spread through food and water that have been contaminated.  Today it remains a real threat in places like refugee camps, where people are crammed together without proper sanitation available.  In the Middle Ages, it was a constant concern in siege camps.

Think about it.  A siege involves a whole lot of men living in tents, close together, without easy access to clean drinking water or to proper latrines (no modern port-a-potties).  The people inside the castle being besieged certainly had problems, but at least they had their own well and their own "comforts" of home.

It was thus one of the reasons that powerful men, the type who would be in siege camps, often died at an age that we would consider very young (in their thirties or maybe forties).  Some notable English kings who died of what appears to have been dysentery include Young Henry, the heir to Henry II of England; King John of England (Young Henry's younger brother); and Edward I (John's grandson).  In France Louis VI probably died of dysentery (though not acquired in a siege), as did Louix IX (acquired in a siege in north Africa).

Medieval cities were acutely aware of the danger of dysentery.  Without modern urban sanitation and water processing, which are really twentieth-century developments, contaminated water was a constant concern.  You could do in your enemy by plausibly accusing him of poisoning the wells (this was one of the accusations made against Jews in the late Middle Ages).  City governments were accordingly extremely strict about anything that might lead to outbreaks of the "bloody flux."  One does not have to know about bacteria to know about infection and contamination.

We do mot know how lucky we are to be able to turn on the tap and get clean water.

© C. Dale Brittain 2022

For more on medieval health and disease and other aspects of medieval history, see my book Positively Medieval, available on Amazon and other ebook platforms.  Also available in paperback.