Daim tawv nqaij muaj tag nrho ntawm 3 txheej: Epidermis (muaj li ntawm 5 sublayers), Dermis thiab nqaij mos subcutaneous. Qhov tob tob koob tattoo yuav tsum nkag mus rau hauv Dermis txheej. Yog tias qhov tob tob, nws yuav tsuas nkag rau hauv txheej epidermis sub thiab tus number case yuav “los ntshav” raws li lub tattoo kho
