Udder Oedema Around Calving in Cows & Buffaloes

Udder oedema is the soft, fluid swelling of the udder — and often the area just in front of it — that appears around calving. It is most common in high-yielding cows and first-calf heifers, and in buffaloes. Mild cases are not painful and clear within a few days with frequent milking, gentle massage and exercise; severe cases need dietary changes and veterinary care to protect the udder, teats and milking ability. The key is to tell harmless oedema apart from mastitis, which is a true infection.

What udder oedema is

Udder oedema (also spelled udder edema) is a build-up of fluid in the tissue of the udder caused by poor drainage of blood and lymph as the udder fills and blood flow increases sharply before and after calving. The udder feels doughy and swollen, and finger pressure leaves a dent (pitting) that slowly fills back. The swelling may spread forward along the belly (a plate of oedema in front of the udder) and sometimes to the teats, making milking and suckling difficult.

Why it happens: causes and risk factors

• High-yielding animals and first-calf heifers are most affected because blood flow to the udder rises steeply at first calving.
• Excess salt (sodium) and potassium in the pre-calving ration draw and hold water in the tissue.
• Heavy grain feeding in late pregnancy.
• Lack of exercise in the dry period, which slows lymph drainage.
• Low blood protein and some mineral imbalances.
• Genetics and a previous history of oedema.

Oedema or mastitis? How to tell the difference

This is the most important check, because the two are managed very differently:

• Udder oedema: swelling is usually in both or all quarters and in front of the udder, the skin is cool, pressure leaves a pit, the animal is not in pain, and the milk looks normal.
• Mastitis: one or more quarters are hot, hard and painful, the animal may be dull or off-feed, and the milk is abnormal (clots, flakes, watery or blood-tinged).

If the milk is abnormal or a quarter is hot and painful, treat it as mastitis and call your veterinarian. For udder health and clean milk-out, see our guide on mastitis prevention.

Management and treatment

• Milk frequently and completely: milking out two to three times a day removes pressure and speeds drainage.
• Gentle upward massage of the udder after milking, with a warm compress, improves circulation. Udder support straps help severe cases.
• Cut salt and potassium in the ration and avoid overfeeding grain in the last weeks before calving.
• Encourage light exercise rather than letting the animal stand all day.
• Severe or persistent cases may need diuretics or anti-inflammatories: these are veterinary decisions, not home remedies.
• Keep teats clean and use a soft emollient if the skin is stretched or chapped; see teat care.

Prevention through transition and mineral management

Most oedema is prevented in the dry and transition period:

• Avoid over-conditioning and heavy grain in late pregnancy; feed a balanced transition ration.
• Limit added salt and high-potassium feeds before calving, and keep clean water available.
• Provide daily exercise in the dry period.
• Maintain balanced minerals around calving: a chelated mineral mixture such as Cattle Remedies Verymin supports healthy circulation and transition. For ongoing udder health and milk let-down, many dairy farmers use Cattle Remedies Uddicin-H; compare options in our guide to the best udder health supplement for cattle in India.

Frequently asked questions

How long does udder oedema take to go away?

Mild oedema usually improves within a few days to two weeks after calving with frequent milking, massage and exercise. Severe cases can take longer and should be checked by a veterinarian so they do not damage the udder's suspensory tissue.

Is udder oedema dangerous?

Mild oedema is not dangerous, but severe or prolonged swelling can stretch and weaken the udder's support ligaments, make milking painful, and raise the risk of teat injury and mastitis, so it should not be ignored.

Can I prevent it in first-calf heifers?

Largely, yes. Avoid overfeeding grain and salt before calving, ensure exercise, and keep minerals balanced. Heifers with a family history of oedema need the closest attention in the last month of pregnancy.

References

Merck Veterinary Manual, "Udder Oedema in Cattle"; Farm Advisory Service (FAS Scotland), "Managing and preventing udder oedema" (fas.scot); research on udder oedema in first-calvers and its therapeutic management, BioMedGrid (biomedgrid.com).

This article is for general guidance only. Always consult a qualified veterinarian for diagnosis and treatment of your animal.