How many days does it to take to grew your muscles?

Muscles usually take 24 to 48 hours to heal completely and grow in size. This is the reason why bodybuilders subject a body part to a good workout and let it recover for 2 days so that it would heal itself and grow in the process. In case your muscles are fatigued or injured due to excessive physical strain, they might require atleast a week or even more depending on the amount of damage caused to the muscles.