Mild yellow colour is natural colour of teeth. If it is disturbing you, get consultation done from the dentist for the diagnosis of intrensic or extrinsic stains. In office bleaching, home bleaching or over the counter products are available which your dentist can advise you based on the type and degree of stains present. Other treatment modalities being direct veneers or indirect veneers.
Next Steps
clincal checkup is mandatory for deciding the treatment.
Health Tips
aggressive brushing should be avoided in the process of making your teeth white.