Hen Health
My hen died and her bottom is bulging. What happened?
A bulging bottom or vent area may be a sign that the hen’s vent was damaged, commonly referred to as a “blow out.”
It may have been a vent injury
Her vent may have been damaged from laying an egg that was too large or from laying eggs at too young of an age.
This type of injury is commonly referred to as a “blow out”.
Large Egg
A hen may experience vent damage if she lays an egg that is too large for her body.
Laying Too Young
Young hens that begin laying early may be more at risk for laying-related vent problems.
Blow Out
“Blow out” is a common term used when the vent area is damaged or protruding.
What does this mean?
A hen’s vent is the area where eggs pass when she lays. If that area becomes damaged, it may appear swollen, bulging, or protruding.
Unfortunately, this can be a serious condition and may result in the loss of the hen.
For future flock concerns
If you notice a live hen with a swollen, bulging, or damaged vent area, separate her from the flock and contact a poultry specialist or veterinarian as soon as possible.
In simple terms, a bulging bottom after death may indicate vent damage from laying, often called a “blow out.”