Your blood serves numerous roles to maintain your health. To carry out these functions, blood contains a multitude of ...

As we age, our cells replicate, and the DNA in these cells can acquire mistakes—or mutations—every time the sequence is ...

Exercise generally increases white blood cell count, but chronic overtraining can cause a WBC drop. Learn more here.

A differential blood count is a test that measures your white blood cell. Learn more about why it’s done, reference ranges, and more.

The study shows that platelets collect DNA fragments from tumors and fetuses, which can enhance cancer detection and prenatal screening.

Normal platelet count Platelets generally make up less than 1% of your total blood volume. A healthy platelet count ranges from 150,000 to 450,000 platelets per microliter of blood.

DEAR DR. ROACH: In 2017, my white blood cell count was 8.9 and my lymphocytes were 3.2. My recent blood tests showed a second increase in both numbers, with the WBC 10.2 and lymphocytes 4.8.

Perilously Low White-Blood-Cell Count Six months earlier, she told her uncle, she went to a new primary-care doctor, who sent off some routine blood work.