Conditions list medically reviewed by George Krucik, MD, MBA
A head injury is an injury to your brain, skull, or scalp. All head injuries should be treated seriously and assessed by a doctor. Get the facts about 6 major types.
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.
A stroke is a medical emergency that requires immediate medical care. Learn about the signs of a stroke and what to do.
A cataract is a dense, cloudy area that forms in the lens of the eye. It develops slowly and eventually interferes with your vision.
High blood pressure is often associated with few or no symptoms. Many people have it for years without knowing it.
Learn about migraine types, symptoms, triggers, and treatments as well as how they are different from regular headaches.
Myasthenia gravis is a neuromusclar disorder. It results in weakness of the skeletal muscles, and can cause double vision and drooping of the eyelid.
The things you've wanted to know about MS are all in one place. Learn more about symptoms, treatment, and lifestyle management.
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.
If you have an injured eye or a foreign object in your eye, you'll likely need to seek medical attention right away. Here's what to look out for in eye emergencies.
The human brain works by sending electrical signals through neurons, which are nerve cells. A seizure occurs when there's a surge in this electrical activity.
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.
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…
Intracerebral hemorrhage (ICH) is when blood suddenly bursts into brain tissue, causing damage to the brain. Symptoms usually appear suddenly during ICH.
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.
Eclampsia is a rare but serious condition that causes seizures during pregnancy. You can develop eclampsia even if you don't have a history of seizures.
Graves' disease is an autoimmune disorder that causes your thyroid gland to create too much thyroid hormone. Learn the symptoms and your treatment options.
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.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.