Facial lines, also known as nasolabial folds, refer to two symmetrical lines that extend from the sides of the nostrils toward the corners of the mouth. The facial nerves run along these lines from the top to the bottom of the face.

If the nasolabial folds are asymmetrical or too close to the corners of the mouth, it is considered an ominous sign.

1. For women under twenty years old, prominent nasolabial folds indicate a weak relationship with parents and an ominous sign of declining family fortune.

2. If the nasolabial folds are long and wrap around the mouth, they represent a life lacking in food and resources, and are prone to cause digestive system diseases.

3. Symmetrical nasolabial folds that are clearly marked along the sides of the nostrils indicate self-reliance and are a sign of a prosperous family.

4. Asymmetrical nasolabial folds suggest unstable career and frequent worries about housing.

5. Nasolabial folds that enter the corners of the mouth are called "the snake entering the mouth" in ancient times, indicating a disastrous sign of starvation. Women around twenty years old may face great calamities.

6. Nasolabial folds that break off midway indicate a shallow connection with blood relatives and potential health issues.