Level 2 heart murmur.

What happens if I ignore it? My kitty is 5 months old

I don't know much about heart murmurs, but it's possible that the kitty will outgrow it, especially since s/he's so young.  What does your vet recommend? 

Here's a search I did on heart murmurs for you to check out until someone more knowledgeable comes along.

http://www.thecatsite.com/newsearch?search=heart+murmur

In what sense do you mean ignore it? I mean - what did the vet suggest as a course of action? Because for a grade two in a young cat, my understanding is the vet would just want you to bring kitty back after a month or so, to see if the level of the murmur has changed at all.

When the first vet heard Flowerbelle's heart murmur, she said it's got to be a grade two, because she can't hear grade one. Murmurs can be caused by a very long list of things, and aren't by definition indicative of heart disease. Especially in growing kittens, they may grow out of it. It can also be caused by stress, just from the vet visit. In Flowerbelle's case, she was nine years old, and a murmur had never been detected before. So we pursued diagnostics.

If you want to know for sure if it is a structural problem (like a mitral valve prolapse), the best option is a cardiac ultrasound, done by a specialist. That was the option we took first, and it turned out that's exactly what she has. I developed this as an adult as well.

http://www.vcahospitals.com/main/pe...icle/animal-health/heart-murmurs-in-cats/3913

When she was 4 months, the vet said to come back next month, And we did, and its still there. She said a cat can live with a heart murmur,, not as long as a normal cat would and that its better to get it checked out by a specialist which can be very costly.

I believe a cat can live with a heart murmur as long as another cat, even if it is heart disease. My cat was diagnosed with a grade 3-4 heart murmur when he was 8 going on 9 years old. The vet recommended seeing a specialist because of his age. I'm so glad I did this for him. The cardiologist diagnosed him with HCM and it was actually a very manageable condition. My cat was diagnosed with moderate-severe HCM which sounds bad but all he had to do was take medicine twice a day and an aspirin 2 times a week. He never showed signs or symptoms of anything and acted like a normal cat. He ran around like crazy and loved life. He would go for vet visits twice a year, and yes sometimes they were expensive (but not as bad as some other conditions). The vet would adjust his meds as needed and as time went on, the murmur was less intense and he no longer had an arrhythmia either. The vet only wanted to see him once a year as well. He lived to be 14 (just passed away 6 weeks ago) and he didn't die from HCM either. Sadly it was cancer.

So I think since your cat is young, you might be able to wait or perhaps get a second opinion to see what another vet thinks your course of action should be. However, if it persists, I would recommend the echo (heart ultrasound) to see if there is anything going on. This way if it is a heart condition, you can manage it and your cat can have a long life.

Thank you