Bud Rot?

Cut down one of my plants and found this, it was about 4" from a bulb but other same or closer did not do this and this was only one I found.
Just wondering is this Rot?

Yep, bud rot or botrytis... trim all the bad and keep the good.. I hate that shit!

That sucks but I defiantly agree cut out the bad keep all the good.
Moondance

make sure when u have cut the bad u keep the humidity down when drying as too higher humidty may cause any spores to spread and make sure ur space has good airflow specially towards buds near lights preferable running between plant and light and have a low humidity towards end of flower

Thanks, Fortunately it was only one bud.
What I thought was odd is my humidity has been around 35-45 on average last few weeks in my tent.
I had few fans throughout and intake of fresh outside air.
It happened on side of bud facing away from me and I missed seeing it start somehow.
Oh well rest is hanging now with a gentle fan where humidity is 63 right now and holding.

dont suppose the sides of ur tent pull in and the bud could of been sat on a surface of the tent mine did this also in last flower i blame that and less air circulation round the bud for it plus as your plant is perspirating the water will sit on the surface of the tent therefore kinda leaving ya buds sat in water just a suggestion and a possibility hope this helps