Health Library

Information on Health Conditions and Treatments

Welcome to the Scripps health information library. It’s part of our commitment to partnering with you for lifelong wellness.

Here you can read articles on hundreds of health conditions and wellness topics, complete with medical illustrations and links to related symptoms, procedures and conditions.

Visit the library content using the tools below.

  • Disease

    Syringomyelia

    The central nervous system is made up of the brain and spinal cord. The brain functions to receive nerve impulses from the spinal cord and cranial nerves. The spinal cord contains the nerves that carry messages between the brain and the body. Spinal cord injury can occur when there is damage to the cells within the spinal cord or when the tracts of nerves that run up and down the spinal cord are severed.

    Syringomyelia is damage to the spinal cord due to a fluid-filled hole that forms in the cord.

  • Special Topic

    Systemic

    Systemic means affecting the entire body, rather than a single organ or body part. For example, systemic disorders such as or systemic diseases such as...

  • Disease

    Systemic lupus erythematosus

    Lupus, discoid - view of lesions on the chest: This close-up picture of the neck clearly shows the typical rounded appearance of discoid lupus. The whitish appearance is caused by scaling. The two dark spots are biopsy sites and are not part of the disease.

    Systemic lupus erythematosus (SLE) is an autoimmune disease in which the body’s immune system mistakenly attacks healthy tissue. It can affect the skin,...

  • Test

    T-cell count

    Blood is drawn from a vein (venipuncture), usually from the inside of the elbow or the back of the hand. A needle is inserted into the vein, and the blood is collected in an air-tight vial or a syringe. Preparation may vary depending on the specific test.

    A T-cell count measures the number of T cells in the blood. Your doctor may order this test if you have signs of a weak immune system such as due to having .

  • Test

    T3 test

    Triiodothyronine (T3) is a thyroid hormone. It plays an important role in the body’s control of metabolism. A laboratory test can be done to measure the...

  • Test

    T3RU test

    The T3RU test measures the level of proteins that carry thyroid hormone in the blood. This can help your health care provider interpret the results of and...

  • Test

    T4 test

    Blood is drawn from a vein (venipuncture), usually from the inside of the elbow or the back of the hand. A needle is inserted into the vein, and the blood is collected in an air-tight vial or a syringe. Preparation may vary depending on the specific test.

    T4 (thyroxine) is the main hormone produced by the thyroid gland. A laboratory test can be done to measure the amount of T4 in your blood.

  • Injury

    Tailbone trauma

    The tailbone (coccyx) is the small bone at the lower tip of the spine.  The most common cause of injury to the tailbone is a backward fall onto a hard surface, such as a slippery floor or ice.

    Tailbone trauma is an injury to the small bone at the lower tip of the spine.

  • Self-Care Instructions

    Tailbone trauma - aftercare

    Coccyx injury: Coccyx fracture

  • Disease

    Takayasu arteritis

    The interior of the heart is composed of valves, chambers, and associated vessels.

    Takayasu arteritis is an inflammation of the aorta and . The aorta is the artery that carries blood from the heart to the rest of the body.