What should you know about chronic mastitis in cows?

In cattle, mastitis affects udder tissue and may alter milk, reduce milk production or recur without dramatic external signs. Management involves veterinary examination, herd records, milk sampling and farm-specific controls. Human mastitis is a separate clinical problem involving breast tissue, often during breastfeeding. Information about veterinary medicines, milk withholding or herd management should not be applied to a person. Likewise, a cow's culture result cannot guide treatment for human breast pain or inflammation.

For an affected cow, contact a licensed veterinarian who can assess the animal, advise on sample collection and interpret culture or susceptibility findings. Follow local veterinary rules for medicines and handling milk; do not use leftover human antibiotics. For a person with a painful, hot, swollen or red breast, arrange a medical assessment. If breastfeeding, gentle, comfortable milk removal and support with attachment or pumping technique may help while the cause is evaluated. Do not take veterinary products or use an animal's prescription.

Veterinary urgency depends on the cow's overall condition, udder findings and milk changes; marked weakness, poor intake or rapid deterioration warrants immediate veterinary contact. A person should seek prompt medical care for worsening breast redness, fever, recurrent symptoms or a new swelling. Seek urgent human care for confusion, faintness, breathing difficulty or severe illness. Persistent focal swelling may need imaging to check for an abscess.

Ask the veterinarian whether the cow needs a milk sample, what could be causing repeated infection and which herd measures may limit recurrence. For human symptoms, ask the clinician whether the presentation fits inflammatory mastitis, bacterial infection or an abscess, and whether culture or imaging is needed. A lactation professional can separately assess feeding position, attachment, milk transfer and pump settings.