Respuesta :

they usually share needles or one has HIV blood that's being directly transmitted via blood to blood contact though tattoos could because the needle they used wasn't proper sterilizatied
Because when people shoot up drugs and do home made tattoos there is a common thing going on between the two, they are both not being sterile and safe. It is easier to catch HIV from those things because some people aren’t safe and follow all precautions. It is better to know what you’re doing and be safe.