I too am wondering when I should have Miki spayed. I keep seeing in the posts ~ it depends on her weight.... I haven't had Miki weighed in a couple of months, but she was only 1 lb 9 oz the last time she was weighed, and she doesn't look like she gained much, if anything since then. She eats and is healthy in every other way. She also has dbl teeth which concerns me. She turned 8 months today. I'm wondering if I should wait or have it done??? Because she is so small, I'm very worried about the surgery.