Symptoms and Causes

What Is Pseudobulbar Affect? Pseudobulbar affect (PBA) causes sudden, uncontrollable episodes of laughing or crying that don’t match how a person actually feels. This condition typically…

Understanding Immune System Disorders Primary immune disorders happen when parts of the immune system are missing or don’t work correctly. These conditions make it harder for…

Overview Osteosarcoma is a bone cancer that typically affects teenagers and young adults. However, it can develop in children and older adults as well. This cancer…

Overview Medulloblastoma is a type of brain tumor that starts in the cerebellum, the part of the brain that controls balance and coordination. This cancer occurs…

Overview Polyhydramnios occurs when too much amniotic fluid builds up around the baby during pregnancy. This condition affects about 1-2% of pregnancies and is typically detected…

Overview Fuchs dystrophy affects the cornea, the clear front tissue of the eye, causing fluid buildup. This condition makes the cornea swell and thicken, which leads…

Overview A sprain happens when ligaments get stretched or torn. This injury most commonly affects the ankle. When you roll, twist, or turn your ankle awkwardly,…

Overview Gaucher disease occurs when fatty substances build up in organs like the spleen and liver. This causes them to enlarge and potentially lose function. This…

What Is Zollinger-Ellison Syndrome? Zollinger-Ellison syndrome occurs when tumors called gastrinomas develop in the pancreas or small intestine. These tumors release excessive amounts of gastrin, a…

Overview Thunderclap headaches strike suddenly with intense pain that reaches its peak within 60 seconds, similar to the sudden boom of thunder. These rare headaches can…