If I remember correctly, Robyn, it was a clear discharge that my female cats had, and they sure did "YOWL", loudly, when they were in heat! I couldn't get them "fixed" fast enough!!! LOL!!!

There is more risk, I think, in having them spayed when in heat. With Shrimp Boat, she was going into heat constantly and I finally had it done while she was in heat. I just knew I was going to see every male cat in Kannapolis, NC lined up on my balcony, waiting to "visit", and I wasn't supposed to even have her in my apartment!!!!