Hi jt5, sorry you aren't feeling well.
While blood in stool is listed as a possible symptom of Crohn's disease its not normal in general. There's an open wound from somewhere which could be from hemorrhoids, inflammation, ulcers, a fissure etc. Any new symptoms should be reported to your GI as soon as possible so they can figure out what's going on and adjust your treatment to help make it stop. Blood loss can lead to many other problems so its best to get it taken care of as quickly as possible. If its just a hemorrhoid, great but you need to have your doctor take a look to be sure.
I had bright red bleeding off and on coming from my ileum when I was younger. It was from inflammation and ulcers. I almost needed a blood transfusion the first time because I lost a lot of blood but luckily I didn't have to and my doctors were able to get the bleeding under control with steroids and bowel rest (I was kept in the hospital for over 2 months). The toilet was filled with blood so I was taken to the ER the first time. Another time it was less but I still went to the ER.
Even though blood has been a symptom of mine in the past I still take blood loss seriously and go to the ER if its a lot. If it were a small amount then I'd call my GI right away and let them know about it so they can adjust my medication.
Let us know what your GI says and keep us posted on how you're doing.