What are causes for anemia?

Answer 1

Anemia means a low level of red blood cells, which carry oxygen. Mild anemias generally produce no symptoms but more severe anemia can cause shortness of breath, fatigue, and dizziness.

Causes include:

Increased loss - Usually bleeding is obvious. Vaginal bleeding (menstrual) can be significant enough to cause anemia and bleeding into the stomach an intestines can go unnoticed. Trauma patients with a fracture thigh can bleed significantly into the muscle. Certain conditions can cause the red cells to burst within the blood vessel causing no visible bleeding (abnormal hemoglobins such as sickle cell fall into this category).

Decreased production - The most common reason for this is low iron, often caused by low level bleeding and occasionally a poor diet. Other vitamin deficiencies and diseases can also do this.

Factitious - If the total body fluid is up or the tourniquette is left on too long when drawing the blood fluid can dilute the red cells despite having a normal amount.

Answer 2

There are different types of Anemia so different causes for different ones, but some of the causes for Anemia can be a large blood loss, lack of iron in the diet or when your body is unable to absorb the Vitiman B12.

Here is a link that if you scroll to the bottom it tells you the types and their causes:

Answer 3

when you are constantly feeling weak and get tired from doing nothing.

It's when your low on iron!

Answer 4

Conditions that result in decreased red blood cells...

Answer 5

by hemoglibin fails.