after donating blood how long does it take to replace it
How long does it take for the body to replace loss of blood? The body makes new blood all the time but how long it takes depends on how much. Actually it takes 4 month, because blood is produced from the bone marrow and the bone marrow â¦ replaces blood every 4 months, so if u donated blood for example 1/4 liter then it will take 4 months and if you donated even 5 liters, which is wrong, you will also take 4 months.