I have a 5 by 6 CM split in my spleen, but it wasn't take it out. How long will it take to fully recover?

Splenic Trauma. The spleen is an easily traumatized organ in the abdomen. An injury to the spleen can be quite problematic. Most trauma surgeons would recommend avoiding excessive physical activity for about 4-6 weeks after a splenic injury. Any excessive activity such as contact sports, etc can cause re-bleeding of the spleen, necessitating surgery to remove the spleen.