Archive · 28 Nov 2025
Ignaz Semmelweis: Handwashing Pioneer Ahead of Germ Theory
A long time ago, in a hospital in Vienna, many mothers were dying after giving birth.
A doctor named Ignaz Semmelweis noticed that the mothers in the ward where doctors worked were dying much more often than in the ward where midwives worked.
He found out that the doctors were spreading germs from doing autopsies to the mothers.
He made the doctors wash their hands with a special solution, and the number of deaths went down a lot.
But many doctors didn't believe him because they didn't understand germs yet.
Today, we know that washing hands is very important to stop the spread of germs, and we thank Dr. Semmelweis for this discovery.
Ignaz Semmelweis noticed high maternal mortality rates in the doctor-run ward of Vienna General Hospital in the 1840s.
He discovered that doctors were spreading 'cadaverous particles' from autopsies to mothers, causing childbed fever.
Mandatory handwashing with chlorinated lime solution reduced mortality rates from around 18% to below 2%.
Semmelweis's colleagues rejected his findings due to lack of germ theory, professional pride, and his abrasive communication style.
Today, hand hygiene is a cornerstone of infection control worldwide, with Semmelweis recognized as the 'father of hand hygiene'.
- Who
- Ignaz Philipp Semmelweis, a Hungarian obstetrician
- What
- Discovered that handwashing with chlorinated lime solution reduces maternal mortality from childbed fever
- When
- 1840s-1860s
- Where
- Vienna General Hospital, Austria
- Why
- To address the high maternal mortality rates in the hospital's First Obstetrical Clinic
- Name
- Ignaz Philipp Semmelweis
- Profession
- Hungarian obstetrician
- Discovery
- Handwashing to prevent infections
- Time Period
- 1840s-1860s
- Impact
- Reduced maternal mortality rates significantly
- Legacy
- Father of hand hygiene, cornerstone of infection control
- Death
- 1865, institutionalized after mental health decline
- Vindication
- Recognized post-germ theory establishment