It depends on the condition. Mild strains or sprains tend to recover quickly (weeks) while severe muscle or ligament injuries may require a more lengthy recovery time (months). Chronic conditions such as arthritis or osteoporosis may only require monthly follow-ups with a therapist. However, each person recovers at a different rate. After observing and assessing your injury, a physiotherapist will be able to estimate the length of time required for full recovery.