Conditions list medically reviewed by George Krucik, MD, MBA
A transient ischemic attack (TIA) occurs when there's a sudden lack of blood flow to your brain. Learn about TIA symptoms, treatment, and prevention.
Intracerebral hemorrhage (ICH) is when blood suddenly bursts into brain tissue, causing damage to the brain. Symptoms usually appear suddenly during ICH.
The cornea is a thin, transparent dome that covers your eye's iris and pupil. The iris is the colored part of your eye, and the pupil is the black center. All light…
Hypoglycemia, or low blood sugar, is a potentially dangerous condition that's most common in people with diabetes. Learn what causes it and how to prevent it.
An aneurysm in the brain is a weak area in an artery in the brain that bulges out and fills with blood. It can be unpredictable and life-threatening, and can cause…
Subarachnoid hemorrhage (SAH) refers to bleeding within the subarachnoid space, which is the area between your brain and the tissues that cover it.
A cataract is a dense, cloudy area that forms in the lens of the eye. It develops slowly and eventually interferes with your vision.
Learn about migraine types, symptoms, triggers, and treatments as well as how they are different from regular headaches.
A stroke is a medical emergency that requires immediate medical care. Learn about the signs of a stroke and what to do.
Strabismus, or "crossed eyes," causes the eyes to not line up in the same direction. It tends to develop in children who are very young, and is often treatable.
A brain tumor is the growth of abnormal cells in your brain. Whether the growth is cancerous or not, any brain tumor is serious. Symptoms can include both cognitive and…
Primary cerebral lymphoma, or brain lymphoma, is a rare cancer that starts in the lymph tissues of the brain or spinal cord.
High blood pressure is often associated with few or no symptoms. Many people have it for years without knowing it.
Graves' disease is an autoimmune disorder that causes your thyroid gland to create too much thyroid hormone. Learn the symptoms and your treatment options.
Temporal arteritis occurs when the temporal arteries, which supply blood to the head and brain, become inflamed or damaged.
Digitalis toxicity occurs when you take too much digitalis, a medication used to treat heart conditions.
Wernicke-Korsakoff syndrome is a brain disorder caused by a lack of vitamin B-1. The syndrome is two separate conditions that can occur at the same time.
Botulism (or botulism poisoning) is a rare but very serious illness that transmits through food, contact with contaminated soil, or through an open wound.
A bite from a venomous snake should always be treated as a medical emergency. Even a bite from a harmless snake can lead to an allergic reaction or infection.
A hyphema is a collection of blood in the eye, between the cornea and the iris. It is painful, and requires immediate medical attention.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.