Causes. Burns are caused by: Fire. Hot liquid or steam. Hot metal, glass or other objects. Electrical currents. Nonsolar radiation, such as that from X-rays. Sunlight or other sources of ultraviolet radiation, such as tanning beds. Chemicals such as strong acids, lye, paint thinner or gasoline. Abuse. Risk factors. Risk factors for burns include:

2024年8月22日 · Causes. GERD is caused by frequent acid reflux or reflux of nonacidic content from the stomach. When you swallow, a circular band of muscle around the bottom of the esophagus, called the lower esophageal sphincter, relaxes to allow food and liquid to flow into the stomach. Then the sphincter closes again.

Learn about causes, symptoms, risk factors and complications of burns and how to prevent and treat them.

2024年6月7日 · Causes. Sunburn is caused by too much exposure to ultraviolet (UV) light. UV light may be from the sun or artificial sources, such as sunlamps and tanning beds. UVA is the wavelength of light that can penetrate to the deep layers of …

2022年5月13日 · Causes Heartburn occurs when stomach acid backs up into the tube that carries food from your mouth to your stomach (esophagus). Typically, when food is swallowed, a band of muscle around the bottom of the esophagus (lower esophageal sphincter) relaxes to allow food and liquid to flow down into the stomach.

2022年8月16日 · Cystitis is a condition that affects the bladder. It happens most often when bacteria cause an infection. But there are other causes, too.

2024年7月30日 · Swelling of the pancreas (pancreatitis), massive blood transfusions and severe burns can lead to ARDS. Risk factors. Most people who get ARDS already are in a hospital for another condition. Many are critically ill. People are especially at risk if they have an infection, such as sepsis or pneumonia.

2024年2月16日 · Causes. Physical causes of painful intercourse differ, depending on whether the pain happens at entry or with deep thrusting. Emotional factors can be linked to many types of painful intercourse. Entry pain. Pain during penetration might be associated with a range of factors, including: Not enough lubrication.

Causes. UTIs typically occur when bacteria enter the urinary tract through the urethra and begin to spread in the bladder. The urinary system is designed to keep out bacteria. But the defenses sometimes fail. When that happens, bacteria may take hold and grow into a full-blown infection in the urinary tract.

2024年7月31日 · Causes. Acute bronchitis is usually caused by viruses, typically the same viruses that cause colds and flu (influenza). Many different viruses — all of which are very contagious — can cause acute bronchitis. Antibiotics don't kill viruses, so this type of medication isn't useful in most cases of bronchitis.