In most instances, STDs are passed from an infected person to another person during sexual activities, through contact with the mucous membranes of the penis, vagina, mouth and rectum. Such activity includes vaginal, oral and anal intercourse. Gonorrhea and chlamydia also can be transmitted by fingers to eyes. A sexually transmissible infection (STI) is any infection or disease that can be passed from one person to another during sexual activity. Sexually transmissible infections include chlamydia, herpes, gonorrhoea, syphilis, genital herpes, scabies, pubic lice (crabs), hepatitis and HIV (the virus that causes AIDS).

What is gestational trophoblastic disease? Cancer starts when cells in the body begin to grow out of control. Cells in nearly any part of the body can become cancer, and can spread to other areas of the body. To learn more about how cancers start and spread, see What Is Cancer? Gestational trophoblastic (jeh-STAY-shuh-nul troh-fuh-BLAS-tik) disease (GTD) is a group of rare tumors that involve abnormal growth of cells inside a woman's uterus. GTD does not develop from cells of the uterus like cervical cancer or endometrial (uterine lining) cancer do. Instead, these tumors start in the cells that would normally develop into the placenta during pregnancy. (The term gestational refers to pregnancy.) GTD begins in the layer of cells called the trophoblast (troh-fuh-BLAST) that normally surrounds an embryo. (Tropho- means nutrition, and -blast means bud or early developmental cell.) Early in normal development, the cells of the trophoblast form tiny, finger-like projections known as villi. The villi grow into the lining of the uterus. In time, the trophoblast layer develops into the placenta, the organ that protects and nourishes the growing fetus.

Researchers believe that the infectious agent that causes mad cow disease is an abnormal version of a protein normally found on cell surfaces, called a prion. For reasons still unknown, this protein becomes altered and destroys nervous system tissue -- the brain and spinal cord.

Cholesterol is a fat-like, waxy substance that can be found in all parts of your body. It helps your body make cell membranes, many hormones, and vitamin D. The cholesterol in your blood comes from two sources: the foods you eat and your liver. But your liver makes all the cholesterol your body needs.

If you have multiple sclerosis (MS), you probably had several tests done before you received your diagnosis. There isn’t one test to diagnosis MS, so testing can vary. Doctors can use neurological exams, information about previous symptoms, blood tests, and spinal fluid tests. A magnetic resonance imaging (MRI) scan isn’t used to diagnose MS but rather to rule out other diseases. A diagnosis of MS requires more information than what a scan alone can give. By looking at more than one test or exam result, doctors can get a clearer picture of what’s going on in your body.

How to pull a wisdom tooth fully impacted

A broken bone must be carefully stabilized and supported until it is strong enough to handle the body's weight and movement. Until the last century, physicians relied on casts and splints to support and stabilize the bone from outside the body. The advent of sterile surgical procedures reduced the risk of infection, allowing doctors to internally set and stabilize fractured bones. During a surgical procedure to set a fracture, the bone fragments are first repositioned (reduced) into their normal alignment. They are held together with special implants, such as plates, screws, nails and wires. Internal fixation allows shorter hospital stays, enables patients to return to function earlier, and reduces the incidence of nonunion (improper healing) and malunion (healing in improper position) of broken bones. The implants used for internal fixation are made from stainless steel and titanium, which are durable and strong. If a joint is to be replaced, rather than fixed, these implants can also be made of cobalt and chrome. Implants are compatible with the body and rarely cause an allergic reaction.

Osteochondroma. Osteochondromas (osteocartilaginous exostoses), the most common benign bone tumors, may arise from any bone but tend to occur near the ends of long bones. ... Enchondroma. ... Chondroblastoma. ... Chondromyxofibroma. ... Osteoid osteoma. ... Nonossifying fibroma (fibrous cortical defect) ... Benign giant cell tumor of bone.

LAPAROSCOPIC END TO END URETERAL ANASTOMOSIS

COMMON BLOOD DISORDERS

Diabetic retinopathy involves changes to retinal blood vessels that can cause them to bleed or leak fluid, distorting vision. Diabetic retinopathy is the most common cause of vision loss among people with diabetes and a leading cause of blindness among working-age adults.

The usual reason given for people getting fat is that they eat too much and/or exercise too little. That reflects one of the basic laws of thermodynamics—I forget which one. The amount of energy you put into a system minus the energy you take out has to be stored somewhere i.e. FAT! This formulation—true though it is—does not entirely explain obesity since some people seem to eat more than fat people and exercise no more than these same fat people, and yet they are not fat! Chalking this fact up to the general perversity of the universe is not sufficient explanation. Other factors must come into play. I mention below some of the ideas thoughtful people have proposed to explain why fat people become fat:

Scientists Create Artificial Womb

new sepsis definitions

Learn about Bicuspid Aortic Valves in this presentation. Bicuspid Aortic Valves are present in about 2% of the population and are the most common congenital disorder. Find out more about a Bicuspid Aortic Valve by visiting the following link:

Bioprosthetic valves used in heart valve replacement generally offer functional properties that are more similar to those of native valves.

A brief overview of Filarial infection in humans. This presentation includes the etiopathogenesis, clinical manifestations, diagnosis and treatment of this condition.

There is any chance that the snake is venomous The person has difficulty breathing There is loss of consciousness If you know the snake is not venomous, treat as a puncture wound. 1. Note the Snake's Appearance Be ready to describe the snake to emergency staff. 2. Protect the Person While waiting for medical help: Move the person beyond striking distance of the snake. Have the person lie down with wound below the heart. Keep the person calm and at rest, remaining as still as possible to keep venom from spreading. Cover the wound with loose, sterile bandage. Remove any jewelry from the area that was bitten. Remove shoes if the leg or foot was bitten. Do not: Cut a bite wound Attempt to suck out venom Apply tourniquet, ice, or water Give the person alcohol or caffeinated drinks or any other medications

Decompression is a surgical procedure that is performed to alleviate pain caused by pinched nerves (neural impingement). During a lumbar decompression back surgery, a small portion of the bone over the nerve root and/or disc material from under the nerve root is removed to give the nerve root more space and provide a better healing environment. There are two common types of spine surgery decompression procedures: Microdiscectomy Lumbar Microdiscectomy Microdiscectomy Surgery Video A microdiscectomy (a microdecompression) is typically performed for pain from a lumbar herniated disc. The surgery is considered reliable for leg pain caused by the herniated disc, most commonly called sciatica by patients, and most commonly referred to by medical practitioners as a radiculopathy. Read more about Microdiscectomy Surgery