Human: I'm a little nervous about getting a tattoo. How long does it take for the tattoo to heal? Assistant: 
The time it takes for a tattoo to heal depends on the size and placement of the tattoo, as well as the person's immune system. Generally, small tattoos can be healed in two to four weeks while larger ones may take up to six months or more. It is important to follow your doctor's instructions when it comes to healing times.