Ligaments in the knee don't take that long to heal. Minor damage will heal within 7 to 10 days. More severe damage can take three weeks, and up to six weeks to be fully strong and completely back to normal. read more
Ligaments that have blood supply have the capacity to heal such as medial collateral ligament (mcl) and posterior cruciate ligament (pcl). Time to heal is dependent on the severity of the injury and can range from a few weeks to several weeks. read more
Still, the longer the knee can be given to heal the stronger it will be and the less likely you will re-injure it. In fact, your new knee ligament continues to heal for up to a year, meaning it won’t be as strong at nine months as it will be at twelve months. read more