Metritis in Dairy Cows: Diagnosis and Treatment

Metritis is an infection of the uterus that shows up in the first days after calving, and it can drag down a fresh cow's milk and fertility. Diagnosis and treatment belong with your veterinarian, but your eyes in the pen make early detection possible.

Key points

Metritis is a uterine infection that appears in the first days after calving.
Watch attitude, appetite and milk, not only discharge.
Diagnosis and treatment are for your veterinarian; follow the plan exactly.
Clean calving practices and good fresh-cow management lower risk.
Respect all milk and meat withdrawal times without exception.

What metritis is

Metritis is inflammation and infection of the uterus after calving. The uterus has been open and exposed, and bacteria are always present. Most cows clear them, but some cannot, especially those stressed, injured or slowed by another disease.

Cows can show signs of illness along with the uterine problem. Your veterinarian may use words like puerperal metritis or clinical metritis for different levels of severity and will tell you what applies to your cow.

Many herds see a few cases every year. What matters is whether the number is rising and whether the cows are recovering well, which is why your records and your vet's herd reviews are worth the time.

Signs to watch for in fresh cows

Look for the cow that is dull, eating poorly, and giving less milk than a few days ago. A watery, reddish-brown, foul-smelling discharge is a classic sign. Not every case has a strong smell, so the cow's attitude and intake matter just as much.

Take temperature if your veterinarian has trained you to, and record it. A fever in the first days after calving is a flag, though some very sick cows run low or normal.

When in doubt, call. A fresh cow that is sick can turn down quickly, and an early visit is almost always less costly than a late one. Describe what you see, what the cow ate, how much milk she gave and when she calved.

Foul or watery discharge
Fever, if measured
Reduced appetite and milk
Sunken eyes, dullness, or reluctance to move
Dehydration or a tucked-up abdomen

Why diagnosis belongs with the vet

Several fresh-cow problems look alike: low blood calcium, mastitis, ketosis, displaced stomach and metritis can all cause a cow to go off feed. Treating the wrong one wastes time and can hurt the cow.

Your veterinarian examines the cow, checks for other diseases and decides which route to take. Please do not rely on guesses, neighbor advice or leftover products from the cabinet.

How treatment is handled

Treatment choices are made by your veterinarian and can include different supportive and medical approaches depending on the cow and your herd's protocol. This guide does not recommend any particular drug or dose.

What you can do is carry out the plan exactly. Give every instruction as written, keep the cow's comfort and water in mind, and write down everything given. Milk and meat withdrawal times on the label or set by your vet must be followed exactly, and treated-cow milk must be kept out of the tank.

Mark treated cows clearly
Keep a written record of dates and products
Post withdrawal dates where staff will see them
Recheck as your vet directs

Prevention: where herds make the difference

Metritis is tied to calving cleanliness, calving difficulty, retained placenta, low blood calcium, body condition problems and stress. Preventing it means working on those areas together.

Clean calving pens, clean hands and gear for any assisted calving, reasonable body condition, and a good close-up ration are all part of the answer. Your nutritionist and vet can help tune the details for your herd.

Handling matters for the people involved as well. Wear gloves for any calving help or uterine exam, wash up well afterward, and keep boots and tools clean so that you do not carry bacteria from cow to cow.

Train staff on clean calving help
Keep the maternity pen dry
Control retained placenta and milk fever
Watch body condition on the one-to-five scale

Records to keep and questions for your vet

Write down each case: cow, calving date, calving ease, whether there was a retained placenta, signs, vet findings and outcome. Compare month to month.

At your next herd health visit, ask what your rate is relative to what your vet expects, whether a pattern points to a pen or season, and how the fresh-cow protocol should change.

Review the whole fresh-cow group as well as individual cases. If several cows in one week share a pen, a calving attendant or a ration batch, that points toward a cause you can fix.

How do our rates compare with a healthy herd?
Is our calving help too early, too late or unclean?
Should we change checks on the fresh-cow pen?
How soon should metritis cows be rechecked, and for breeding?

Common mistakes

Waiting to see if a dull cow will improve, treating without a diagnosis, using products without a vet's guidance, and failing to track cases are all common. Another is skipping the rebreeding conversation, since cows that have had metritis may need a plan to return to calving condition and heat.

When to get help: Call your veterinarian the same day for any fresh cow that is off feed, dull, feverish or has foul discharge. Your milk buyer and farm program can tell you how to handle treated-cow milk. Always follow withdrawal times set by the label or your vet.

Sources and further reading

Organization homepages are linked so you can search them for current guidance on this topic.

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← Retained Placenta: Causes and Follow-Up Uterine Health and Fertility After Calving →