A sprained ankle typically takes varying amounts of time to heal depending on the severity of the ligament injury. Mild sprains (grade 1) usually heal in about 2 to 5 weeks, with some people recovering in as little as 1 to 3 weeks. Moderate sprains (grade 2), involving partial ligament tears, generally take 4 to 6 weeks to heal. Severe sprains (grade 3), where the ligament is completely torn, may require 3 to 6 months or longer for full recovery. Healing is supported by following the RICE method (Rest, Ice, Compression, Elevation) and physical therapy to restore strength and flexibility. Walking on the ankle as tolerated can aid healing, but severe pain or inability to bear weight warrants medical evaluation. Rehabilitation is essential to prevent instability and reduce the risk of future sprains.