Why does my cow's udder keep swelling after mastitis treatment?

Question

The under of my cow keeps swelling at the same point now twice, at first a local vet treated it for mastitis and now after 3 days the under swelled again at the same spot. Please help with any possible causes and treatment. Pet's info: Other | Unknown - Other | Female | 2 years and 4 months old

Dr. Strydom, DVM · Accepted Answer

Hello. Thank you for using Petco Pet Education Center, formerly Petcoach. So sorry that Queen is having this issue. The exact cause of udder edema is not known in most cases. Mastitis is probably the number one reason so I think your vet was correct in treating for this first. It would be helpful to know if she is currently pregnant or if she has a calf on her now as the differential diagnosis would be different depending on the answer. Here are some reasons that may be causing this: * cow is close to calving * overfeeding grain * overfeeding sodium and/or potassium * heavy feeding of legume forages (results in excessive protein, calcium and potassium intake) * feeding soy cakes Some things you can try that may help improve the edema: * massaging the udder in an upward direction for 10-20 minutes twice a day after milking so as to promote circulation of fluids * forcing moderate exercise which helps stimulate lymph circulation * administering drugs such as diuretics can be used to speed up the removal of water from the body (must check with your vet first) * hydrotherapy of the udder - use cold water like from a hose to firmly spray the udder for 15 minutes twice a day So, if you and your vet can safely rule out true mastitis then I would suspect this is just edema that may be dietary related. Go over your cows diet thoroughly with your vet to see if you can get it figured out. Hope this helps. Best wishes.

Why does my cow's udder keep swelling after mastitis treatment?

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