Diet : Certain foods that are high in tannins, such as red wine, are potential causes of yellow teeth. Some of the most common causes of tooth discoloration include drinking beverages such as coffee, soda, and wine. These substances get into the enamel of your teeth and can cause long-term discoloration.

Smoking : Smoking is one of the top causes of yellow teeth, and stains from smoking can be stubborn. But smokers can improve their yellow teeth by quitting smoking, following a complete oral care routine of twice-daily toothbrushing and daily flossing, and using the right teeth-whitening products.

Genetics: Sometimes the family’s teeth color also affects us. If one of your parents also has yellow teeth, then it is possible that your teeth may also be yellow, this is also a reason for yellow teeth.

Fast Food: A wide range of foods turn teeth yellow Pasta sauces Curry seasonings and other spices cause yellowing of teeth These substances stick to the enamel and stain the surface

Drinks: Tea coffee is a common reason for yellowing of teeth, generally every person is aware of this reason, but people like tea make their teeth yellow by consuming extra tea.

Illness : Certain medical conditions or medications are also causes of yellow teeth. Patients who are undergoing chemotherapy for head or neck cancers may develop yellow or stained teeth. Also, certain types of prescription medications including medications for asthma and high blood pressure are causes of yellow teeth.

Poor Oral Hygiene : Poor oral hygiene is one of the causes of yellow teeth, but even the most diligent brushers and flossers can develop the discolored teeth that occur simply with age.

Fluoride : Excessive fluoride exposure is also among the causes of yellow teeth, especially in children.