Listing conditions

Displaying 701 - 750 of 801 in total

Strep throat
A very common infection that primarily affects children. It is caused by the bacteria streptococcus pyogenes. Treatment requires a full course of antibiotics to avoid complications.
Stress incontinence
The unintentional loss of urine due to physical activities that put stress on the bladder, such as coughing, sneezing, heavy lifting, or running. Stress incontinence is typically caused by weakening of muscles (urinary sphincter) that hold urine in the bladder.
Stricture of the esophagus
A narrowing or tightening of the esophagus, causing difficulty in swallowing. It can be caused by a variety of conditions, including chronic reflux disease, infection or inflammation, and exposure to toxins such as lye.
Stroke
A medical emergency in which part of the brain does not receive enough blood. Symptoms include sudden onset of weakness, numbness, nausea, and difficulty speaking. It is important to note the time of onset of symptoms and call 911 immediately.
Stye
An infection of the small glands at the base of the eyelashes, leading to the formation of small painful red bumps. They are typically treated with warm compresses or incision and drainage, depending on severity. They are typically harmless, though may recur.
Subacute thyroiditis
A condition causing damage to the thyroid gland, a structure in the neck that regulates metabolism. Initially thyroid hormone (released by the thyroid gland) goes up, then down, then back to normal. Symptoms typically resolve on their own. There are several forms of this condition, and the exact cause is unknown for most.
Subarachnoid hemorrhage
A medical emergency caused by bleeding in the brain, often from an aneurysm.
Subconjunctival hemorrhage
A bruise in the eye with blood accumulating under the clear outside layer. It is often painless and noticed by the patient only when pointed out or in the mirror. Causes include straining, high blood pressure, trauma, and bleeding disorders.
Subdural hemorrhage
Bleeding between the outermost layers of the meninges (the thin membranes that wrap and cushion the brain). This type of bleeding is typically due to tearing of small veins after head injury or rapid deceleration (e.g. car accident). It can be life threatening if occurring suddenly, or it can develop slowly over time leading to sometimes subtle problems in brain function.
Substance-related mental disorder
Any mental health condition, including withdrawal, disorders of thinking like delirium or psychosis, and mood disorders like depression, that are primarily due to drug abuse.
Syndrome of inappropriate secretion of ADH (SIADH)
A syndrome due to high levels of the hormone ADH (antidiuretic hormone). This can lead high levels of water and low levels of sodium, which can cause a number of symptoms, particularly those involving the brain. There are a number of causes, including head injury, certain cancers, and certain drugs.
Syphilis
A sexually transmitted disease caused by the bacteria Treponema pallidum. It is very easily treated in its early stages, but can develop over time leading to significant damage to the organs, including the heart and brain.
Syringomyelia
A disorder in which a thin, hollow, fluid-filled sac called a cyst develops in the spinal cord, the bundle of nerves within the spine that carry information between the brain and the rest of the body. As the cyst gets bigger, it begins pressing on the spinal cord, potentially leading to damage and related symptoms. It is typically caused by obstruction of the flow of cerebrospinal fluid, which nourishes the brain and spinal cord.
Systemic lupus erythematosis (SLE)
Commonly known as just "lupus", this is a condition in which the immune system begins attacking different parts of the body, including the skin, the joints, the lungs, the heart, and the kidneys. With treatment, most patients now live a normal lifespan.
Teething syndrome
Also known as "teething," this is a normal process occurring in infants when their teeth come out, breaking or cutting through their gums. This typically occurs between six months to 3 years of age, and may be the cause of crankiness, irritability, and many other symptoms in infants.
Temporary or benign blood in urine
Blood in the urine that is not concerning for an underlying disease and will go away on its own with time. An example of this is a minor cut inside of the urinary tract causing small amounts of bleeding.
Temporomandibular joint disorder
A disorder of the temporomandibular joint (i.e. the jaw joint just under the ears), leading to pain, difficulty chewing, clicking sounds, or locking of the jaw. The exact cause is often difficult to determine, including arthritis, traumatic injury, and chronic teeth grinding.
Tendinitis
The inflammation of a tendon, the string-like structure that connects muscles to bones. Overuse of the tendon is the most likely cause.
Tension headache
Mild to moderate headache that usually affects both sides of the head at the same time. Most of the time the pain is in the back of the head, neck, or behind the eyes.
Testicular cancer
A malignant transformation of the tissues of the testicles in men. Most types of testicular cancer have very high cure rates, even after they have spread to other parts of the body.
Testicular disorder
Any condition affecting the testacles, including abnormal fluid collections, infections, twisting of the testicles, dilated veins, or cancer.
Testicular torsion
A condition in which the spermatic cord, the structure from which the testicles are suspended, twists, cutting off blood supply to the testicle. This can lead to rapid testicular pain and is considered a medical emergency. If not treated immediately, damage may be permanent. Risk factors include congenital abnormalities and cold weather.
Thalassemia
A group of genetic blood disorders that run in families, caused by a defect in hemoglobin, the protein in red blood cells that carry oxygen. This can lead to anemia or low red blood cell count. Certain forms of thalassemia are life-threatening.
Thoracic aortic aneurysm
A ballooning (widening and thinning) of part of the aorta within the chest. The aorta is the largest artery in the body, coming directly from the heart and feeding most of the tissues. Rupture of this aneurysm can be life threatening.
Thoracic outlet syndrome
A syndrome caused by compression of the superior thoracic outlet, an area in the shoulder through which important nerves and blood vessels run. Causes include congenital abnormalities, injuries or repetitive strain, and rarely tumors or other causes.
Threatened pregnancy
A condition in which there is a high risk of miscarriage. Symptoms may include vaginal bleeding or contractions before the fetus (i.e. unborn child) can survive in the outside world (typically around the 23rd week). Causes include major genetic abnormalities in the fetus, infection, or cocaine use.
Thrombocytopenia
An abnormally low number of platelets, the blood cells involved with clotting. There are many causes, including medication side effects, liver disease, certain cancers, vitamin defficiencies, etc.
Thrombophlebitis
An inflammation of the superficial veins (i.e. those close to the skin) that is due to a blood clot. Risk factors include damage to the vein wall, prolonged lack of movement, or varices. Though blood clots in deeper veins are very dangerous, those in the superficial veins are not life-threatening and respond well to treatment.
Thyroid cancer
A malignant transformation of the tissues of the thyroid, a gland in the neck that produces hormones controlling how the body uses energy. Cancers can arise from different cell types in the thyroid, each having a different prognosis and treatment.
Thyroid disease
Any disorder of the thyroid, a butterfly shaped gland in the front of the neck. This includes conditions causing low or high blood levels of thyroid hormone, cancers of the thyroid, and non-dangerous enlargements or bumps in the thyroid.
Thyroid nodule
A solid or fluid-filled lump of tissue in the thyroid gland, a structure in the neck that helps regulate the body's energy use. Most nodules are not dangerous, though some may be cancerous.
Tic (movement) disorder
A type of movement disorder characterized by sudden, rapid, nonrhythmic movements (i.e. tics). One common cause is Tourette's disorder. The exact cause is unknown.
Tietze syndrome
A non-dangerous inflammation and swelling of the central-most cartilage of one or more of the ribs. This condition is often confused with a heart attack. The exact cause is unknown, but symptoms typically resolve within 3 months.
Tinnitus of unknown cause
Tinnitus is a perception of sound (e.g. ringing, buzzing, humming, ticking, beeping, etc.) coming from the ears when there is no sound. It is described as being of unknown cause if it has been persistent for a significant amount of time and a cause has not been determined despite adequate workup by a physician.
Tonsillar hypertrophy
An enlargement of the tonsils without any signs of infection or inflammation. The tonsils are tissues in the back of the throat involved in the immune system. If they become so large as to obstruct the throat causing problems with swallowing or breathing, they are typically removed surgically.
Tonsillitis
An infection of the tonsils in the back of the mouth. The tonsils are part of the immune system, which normally fights pathogens, but they themselves can become infected. Removal of the tonsils may become necessary.
Tooth abscess
A pocket of pus that forms where the tooth inserts into the jaw. Bacteria can reach this tissue through the pulp of a tooth, gaining access via dental cavities or dental procedures.
Tooth disorder
Any problem related to the teeth, including cavities, chipped teeth, and impacted wisdom teeth. Tooth problems are best treated by your dentist or a dental walk-in clinic rather than the emergency department.
Torticollis
A condition in which the neck or head is twisted to once side or position, due to abnormal muscle contractions. It can be present from birth or acquired later in life. It may be caused by problems with the neck muscles, spine, or even the brain.
Tourette syndrome
A neruological disorder characterized by tics (sudden, repetitive, stereotyped, involuntary movements or vocalizations). Symptoms typically begin in childhood, worsen during teenage years, and decrease in adulthood. It is known to run in families, but the exact cause is not known.
Toxic multinodular goiter
A disease in which nodules develop in the thyroid (a gland in the front of the neck) and become overactive, producing too much thyroid hormone (a hormone involved in regulating metabolism). The exact cause is unknown.
Toxoplasmosis
An infection by the parasite Toxoplasma gondii. Infection in humans is often spread by accidental ingestion of feces from an infected cat. The disease is quite common and those with healthy immune systems typically have only mild flu-like symptoms. Those with poor immune systems, such as young children, pregnant women, or people with HIV, may get serious infections that can damage multiple organs, especially the brain.
Tracheitis
Inflammation of the trachea (commonly known as the windpipe, the tube that takes air into and out of the lungs). It is often caused by a bacterial infection following a cold or the flu in children. It is also common among patients on ventilators.
Transient ischemic attack
Temporary impairment of part of the brain due to low blood flow. Symptoms are similar to those of a stroke, but disappear within 24 hours. As this cannot be known ahead of time, the patient should go to the emergency department for evaluation immediately.
Trichiasis
A condition in which eyelashes grow back towards the eye, touching the outer layer of the eyeball. It can be caused by infection, inflammation, autoimmune disorders, and congenital defects. The eyelash is typically removed to prevent damage to the eye.
Trichinosis
An infection by parasites of the Trichinella group. It is often spread to humans by eating undercooked pork or wild game infected with the larvae.
Trichomonas infection
A sexually transmitted infection caused by the parasite Trichomonas vaginalis. Typically, while men can carry this infection, only women experience symptoms.
Tricuspid valve disease
Problems with the valve on the right side of the heart through which blood travels from one chamber (atrium) to another (ventricle). The valve can either fail to open (tricuspid stenosis) or fail to close (tricuspid insufficiency). There are many causes for this condition and surgery may be required if severe.
Trigeminal neuralgia
A condition marked by intense pain in the face or head originating from the trigeminal nerve, which brings sensory information about the face to the brain. This may be due to compression from an enlarged blood vessel or conditions such as MS (multiple sclerosis).
Trigger finger (finger disorder)
A common disorder of the fingers, in which bending the finger towards the palm leads to catching, snapping, and/or pain. It's exact cause is unknown, but symptoms are due to the tendons of the fingers getting stuck during movement.
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