In-depth

Symptoms

Headache

Tests and diagnosis

Bone marrow biopsy

Complete blood count

A complete blood count can be used to evaluate your overall health, detect a wide range of disorders, or monitor a medical condition or treatment.

C-reactive protein test

Genetic testing

Genetic testing is used to detect altered genes that may cause illness or disease. Although genetic testing can offer important health information, it has limitations.

June 24, 2015