What does it mean? I don't think she is in heat, but could be. The discharge has no smell and there is not a lot of it. Is it an infection or something or is it normal? However what worries me the most is that I've been noticing this discharge for a year or more, sometimes every month, sometimes twice or more a month, sometimes not at all. I thought it was normal, as I saw it on neighbour's cows too, but I've recently found out that it means that there is an infection. Is it like that with mares too? Some of you might know that she has some hind end problems for more than a year, vet said arthritis and maybe calcification on sacroiliac joint, meds didn't help, then we had osteo out, said vertebraes in loin area out, but she can't get them fixed. Cand is very tense and sore in hind end and is standing with her hind legs far apart. I'm wondering if some kind of infection has caused her so much pain... She also carries her tail away from her body and vet was concerned about it, so he did ultrasound of her ovaries (thinking about tumor) but it was ok. Now tell me please, if I'm just being silly (because my mom says the white discharge doesn't mean anything until it doesn't smell bad) or if I have to call vet asap. Here's a pic of what I'm talking about: It will come out as a whitish cloudy mucus and it looks like that when it dries up. She is always dirty like in the pic. I'm not completely sure if it is derbis or smegma, or both. I'm confused because I was told smegma should only be in the udder area? Anyway, when I clean her, she will be dirty again in two days, sometimes even earlier. I e-mailed vet to see what he thinks. She is almost 16yo, had two foals when she was 5 or so and was never breed in last 5 years since I own her. Don't know about before.