While everyone knows the plague was an awful way to die, not many people are aware of how truly horrendous the symptoms were. Swollen, painful lymph nodes gave way to enormous black tumors (known as buboes) that could grow all over the body and gave the disease its most famous moniker. The victim would also experience extremely high fever and bloody vomit. These symptoms could come on rapidly, making it very difficult to get treatment in time.

China Photos / Getty Images
This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.