A complement blood test checks for autoimmune diseases or other issues with your immune system. Your doctor might test you if you have a family history of certain conditions, such as rheumatoid ...

Calcium deficiency can cause early symptoms like muscle aches and long-term symptoms like dental issues. Learn more about how ...

Iron deficiency occurs when your body doesn’t have enough iron and can lead to a condition called iron deficiency anemia. Common symptoms include fatigue, pallor, and breathlessness. Your body ...