Why does my 4 year old have dark circles under eyes?

Related questions

1. Why would a child have high lead levels?
2. Does leukemia cause high WBC?
3. What is an immature immune system?
4. What three things do white blood cells do to defend the body?
5. What level of lead in blood is toxic for a child?
6. What cancers cause high monocytes?
7. What is the normal range for WBC?
8. How does a child get leukemia?
9. What age is a child's immune system fully developed?
10. Can kids get throat cancer?

Tags

1. #genetics
2. #under
3. #often
4. #congestion
5. #common
6. #reasons
7. #darker
8. #veins
9. #larger
10. #nasal
11. #getting
12. #sleep
13. #circles
14. #usually
15. #blocked
16. #panda
17. #children
18. #around
19. #caused
20. #those