You cannot reliably grow an Adam’s apple on your own
An Adam’s apple becomes more prominent mainly during male puberty due to testosterone-driven larynx growth
If you are still in puberty, discuss any concerns about development with a doctor
If you are an adult, hormone changes will not safely or predictably create a larger Adam’s apple
Do not use testosterone or other hormones without a qualified medical professional’s supervision
If your goal is a more masculine neck appearance, consider voice training, posture, grooming, or styling options
If you want a permanent structural change, consult a board-certified plastic surgeon or ENT specialist about thyroid cartilage augmentation or related procedures
Seek medical advice before considering any procedure or hormone treatment