Conditions
Autoimmune Hepatitis
Autoimmune hepatitis is a chronic (long-lasting) disease where your body's immune system mistakenly attacks your liver cells, causing inflammation and damage. This condition can…
Autoimmune Hemolytic Anemia
Autoimmune hemolytic anemia (AIHA) is a rare condition where your body's immune system mistakenly attacks and destroys its own red blood cells. These cells…
Atypical Depression
Atypical depression is a specific type of major depression where your mood can temporarily improve in response to positive events, unlike other forms of…
Atrophic Gastritis
Atrophic gastritis is a chronic condition where the lining of your stomach becomes inflamed and thins over time. This inflammation damages the glands in…
Atrial Tachycardia
Atrial tachycardia is a type of irregular heart rhythm (arrhythmia) where the upper chambers of your heart (atria) beat too fast. This rapid beating…
Ascending Aortic Aneurysm
An ascending aortic aneurysm is a dangerous bulge in the wall of the ascending aorta, the large blood vessel that carries oxygen-rich blood from…
Arthritis in Wrist
Arthritis in the wrist is a condition where the joints in your wrist become inflamed, causing pain, stiffness, and swelling. It happens when the…
Arachnoid Cysts
Arachnoid cysts are fluid-filled sacs that form on the arachnoid membrane, one of the three membranes covering the brain and spinal cord. These cysts…
Aquagenic Pruritus
Aquagenic pruritus is a rare condition where contact with water, regardless of its temperature, causes intense itching, stinging, or burning sensations on the skin.…
Appendix Cancer
Appendix cancer is a very rare type of cancer that starts in the appendix, a small, finger-shaped organ attached to the large intestine. It…
Appendicitis in Children
Appendicitis in children is a serious condition where the appendix, a small finger-shaped organ attached to the large intestine, becomes inflamed and infected. It…
Diabetes and Dry Mouth
Dry mouth, medically known as xerostomia, is a common symptom for people with diabetes. It often happens when high blood sugar levels cause your…
Cervical Dystonia
Cervical dystonia (spasmodic torticollis) is a neurological disorder causing involuntary, painful contractions of the neck muscles. This leads to the head twisting, turning, tilting,…
Cerebrovascular Disease
Cerebrovascular disease refers to a group of conditions that affect the blood vessels supplying your brain. These conditions can disrupt blood flow, depriving brain…
Cerebral Amyloid Angiopathy
Cerebral amyloid angiopathy (CAA) is a condition where a protein called amyloid builds up in the walls of small blood vessels in the brain.…
Central Sleep Apnea
Central sleep apnea (CSA) is a sleep disorder where your brain temporarily stops sending signals to the muscles that control your breathing during sleep.…
Cardiac Amyloidosis
Cardiac amyloidosis is a serious condition where abnormal proteins called amyloid build up in the heart, making it stiff and unable to pump blood…
Carcinoid Syndrome
Carcinoid syndrome is a rare condition caused by certain slow-growing cancers called carcinoid tumors (neuroendocrine tumors). These tumors release excess hormones into your bloodstream,…
Campylobacter Infection
Campylobacter infection is a common bacterial illness that primarily affects your digestive system. It often causes symptoms like diarrhea, fever, and stomach cramps. You…
Chronic Traumatic Encephalopathy
Chronic traumatic encephalopathy (CTE) is a progressive brain condition caused by repeated head injuries, such as concussions or subconcussive impacts. It leads to the…
Choledocholithiasis
Choledocholithiasis is a condition where gallstones become lodged in the common bile duct, a tube that carries digestive fluid (bile) from your liver to…
Cholangiocarcinoma
Cholangiocarcinoma is a rare and aggressive type of cancer that forms in the bile ducts. These ducts are thin tubes that carry digestive fluid…
Charcot-Marie-Tooth Disease
Charcot-Marie-Tooth disease (CMT) is a group of inherited disorders that damage the peripheral nerves, which are located outside the brain and spinal cord. This…
Cervical Myelopathy
Cervical myelopathy is a serious condition where the spinal cord in your neck (cervical spine) becomes compressed, often due to age-related changes. This compression…