Sharing is caring!

If you keep backyard chickens like I do, you know how quickly you get attached to each one. They’re not just birds—they’re pets, companions, and part of the family. Recently, one of my hens, Lucy, developed a swollen abdomen. At first, I hoped it was something minor, but after some research and a little hands-on care, I realized she had water belly, also known as ascites syndrome.

I ended up draining the fluid from her belly for the first time. It was emotional, nerve-wracking, and incredibly eye-opening. I want to share what I’ve learned in hopes of helping others who may be going through the same thing with their flock.

What is Water Belly in Chickens?

First things first, what is it? Water belly is the abnormal accumulation of fluid in the abdominal cavity (or body cavity) of a chicken. This buildup of fluid can cause a swollen abdomen, often making the chicken feel like a water balloon when you pick her up. You’ll notice your hen’s belly is very bloated, soft, and squishy and filled with liquid.

Though it might seem like a stand-alone issue, it’s actually a sign of heart failure or pulmonary hypertension syndrome, which affects the chicken’s heart, respiratory function, and blood flow. While it’s a non-infectious condition, it’s still a very serious condition with a high mortality rate that significantly impacts their quality of life, especially in fast-growing broilers and meat birds.

Common Causes of Water Belly

There are different causes of ascites, and they often stem from how the chicken’s body handles oxygen demand and blood pressure. Here are some risk factors.

• Heart and Liver Failure: When the heart or liver isn’t functioning properly, it can cause poor blood circulation, which increases pressure in the blood vessels, leading to fluid buildup in the abdomen.
• Pulmonary Hypertension (High Blood Pressure in the Lungs): This is especially common in fast-growing broiler breeds, but it can happen in layers, too. High blood pressure in the lungs puts strain on the heart, contributing to fluid leakage.
• Low Oxygen or Poor Ventilation: High altitudes, dusty conditions, ammonia buildup, or lack of fresh air can reduce oxygen levels, stressing the cardiovascular system, contributing to pulmonary hypertension and ascites.
• High Fat and High Protein Diets: Diets too rich in calories, especially in young chickens, can lead to fast growth and overworked hearts.
• Infections: Respiratory diseases (like infectious bronchitis, Marek’s, or avian influenza) can damage lungs and lead to poor oxygen exchange, increasing the risk of ascites. Liver infections (like histomoniasis/blackhead) can also play a role.
• Genetics: Some chickens are just genetically predisposed to cardiovascular issues. It is most common in commercial breeds like Broiler Chickens (Meat Birds), but it can occur in backyard flocks, too.

In Lucy’s case, she’s an older laying hen, and I suspect it’s been building for a couple of weeks. Sometimes, age and genetics just catch up.

Symptoms to Watch For

Keep a close eye on your backyard flock. The earlier you catch it, the better the chance of maintaining your chicken’s quality of life.

• A swollen abdomen with fluid build-up: Lucy looked like she had droopy drawers. When I pressed her belly, it felt very soft and squishy like a water balloon, and her abdomen was also very red.
• Difficulty walking or standing: I noticed Lucy looked more like she was waddling and was not really keeping up with the other chickens.
• Breathing issues or respiratory distress: Chickens with ascites often show signs of respiratory distress, even when the weather isn’t warm. You may notice them panting or breathing heavily for no apparent reason. 
• Dull or blue-ish comb or wattle: One telling sign is a change in the color of their combs and wattles, which can appear bluish. This happens because the limited oxygen in their system is being redirected to support vital organs, leaving less critical areas, like the comb and wattles, deprived and discolored.
• Lethargy: Lucy is normally a very active bird, but I noticed that in the last few days, she had just been standing around and fluffed up.  The lower energy is due to the lack of oxygen circulating in their bodies. This could also result in reduced appetite and feed intake.
• Other symptoms: A drop in egg production, reduced appetite and feed intake, standing with tail down and puffed up

It’s often a combination of clinical signs, and sadly, by the time you see these, the underlying cause has already made things tough internally.

Can You Treat It?

Unfortunately, there is no permanent solution to water belly, and it will ultimately result in the death of your bird. Since it’s often tied to heart disease, organ failure, or internal organs struggling to function, treatment focuses on improving quality of life rather than curing it.

However, you can drain the fluid to ease discomfort—something I did for Lucy. If you’re unsure, you can always contact a trusted veterinarian to perform this for you.

How to Drain a Chicken’s Water Belly

Disclaimer: Always consult local vets or poultry health services before performing any procedure.

Supplies Needed:

• 18-gauge needle
• 60 cc syringe 
• Rubbing alcohol
• Bucket or bowl
• Gloves
• A towel to gently restrain her
• Antiseptic spray

Steps:

1. Gather all your supplies, get them set up, and put your gloves on.
2. Gently restrain your chicken with their vent (butt) facing you. Make sure you secure their wings too, you don’t want the chicken flapping around when you have a needle in them. Since I had never done this before, I enlisted the help of my husband.  I had him gently pick up and hold Lucy with her vent facing me.
3. Identified the puncture site – 2 inches to the right of her vent. (I even brought out a ruler to measure, I was so nervous!) You want to make sure you do this on the right side, as their vital organs are on the left side.
4. Clean the injection site with rubbing alcohol and allow it to dry.
5. Slowly insert the needle at a slight angle and begin to drain the pale yellow liquid. (Be gentle! It can take time.) If the fluid is any color other than pale yellow, stop immediately and call a vet; your chicken most likely has an infection. 
6. Make sure to go slowly, you don’t want to go too fast, as this could throw off her blood pressure, causing your chicken to go into shock.
7. It is recommended that you never drain more than one cup of fluid at a time, as the puncture wound will continue to drain over the next day or two.  If you have a 60 cc syringe, you will be able to fill and empty it 3 times into your bucket or bowl.
8. When you empty the syringe, twist off and leave the needle in your chicken while you empty the syringe, and then reattach the needle.  You don’t want to puncture her more than once each sitting.
9. Once the procedure is complete, remove the needle and spray the area with antiseptic spray. You will also want to keep your bird separated from the rest of the flock for a few days while she recovers and the wound continues to drain.
10. Remember to properly dispose of your needle.

By the time I did Lucy’s first drainage, she had so much fluid buildup that I had to do a second drainage 2 days later. But if the procedure is done correctly, you shouldn’t have to do it for another 2-3 months.

Natural Treatments & Preventive Tips

While there’s no cure, you can definitely support your flock with these treatment options and preventive habits:

• Feed a nutritious diet (avoid too much protein).
• Ensure good ventilation with plenty of fresh air.
• Keep coops dry, clean, and free of moldy feed.
• Avoid stagnant water; always ensure they have access to fresh, clean water.
• Offer a green smoothie with herbs like parsley, garlic, or dandelion for detox.
• Limit heat stress and improve respiratory function.
• Watch for egg yolk peritonitis in older laying hens.
• Reduce exposure to extreme temperatures.
• Select birds bred for sustainability, not just rapid growth.

---

Final Thoughts

Seeing Lucy uncomfortable broke my heart. But after draining her the second time, she seemed more relaxed and moved around better. I don’t know how long we’ll have her, but I’m committed to giving her the best possible life.

A good characteristic of this condition—if you can call it that—is that you can relieve the discomfort, even if just temporarily. That’s why I believe learning how to drain safely and support naturally is a good idea, especially for small backyard chicken keepers like us.

If you’ve noticed a chicken with a balloon-like belly or signs of respiratory distress, don’t wait. Research, observe, and take action when it feels right. You’re not alone—and neither are your chickens.

What questions do you have? Let me know in the comments!

• TikTok
• Pinterest
• Instagram
• Facebook
• Mail

---

Related Posts:
Understanding Bird Flu in Chickens
Treat Bumblefoot in Chickens
Marek’s Disease in Chickens
What Not to Feed Chickens
Why is my Chicken’s Comb Turning Black?

Sign up for friendly chicken-keeping tips, seasonal care guides, and simple ways to create more calm in your days on the farm or in your backyard.