What are purple lips a sign of?

Related questions

1. Why do I have dark purple lips?
2. Why do old people's skin turn purple?
3. What is a cyanotic attack?
4. Can VSD cause cyanosis?
5. What does lip cancer look like?
6. What are the Acyanotic congenital heart diseases?
7. Is ASD cyanotic or Acyanotic?
8. Can VSD cause death?
9. What does skin cancer look like on the lip?
10. Why is my skin purple and blotchy?

Tags

1. #oxygen
2. #signal
3. #discoloration
4. #caused
5. #levels
6. #blood
7. #could
8. #cyanosis
9. #cells
10. #bluish
11. #indicate
12. #protein
13. #sickle
14. #lower
15. #abnormal
16. #hemoglobin
17. #anemia