Symptoms and Causes

Overview Peptic ulcers are open sores that develop on the inner lining of the stomach and upper small intestine. They come in two main types: gastric…

What Is a Stye? A stye is a red, painful bump that forms near the edge of your eyelid. It looks similar to a pimple and…

Overview Carpal tunnel syndrome ranks among the most widespread hand problems. It happens when the median nerve gets squeezed inside the carpal tunnel, a small pathway…

Understanding Psoriatic Disease Plaque psoriasis represents the most common form of psoriasis among affected individuals. It typically appears as dry, reddened patches of skin (plaques) with…

Overview Parkinson’s disease affects the nervous system and causes movement problems that get worse over time. The first signs are often mild—a small tremor in one…

Overview A blood vessel breakage under the clear surface of your eye is called a subconjunctival hemorrhage. This happens when a small vessel bursts beneath the…

What Is Heart Failure? Heart failure happens when the heart cannot pump blood effectively. This causes blood to back up, often leading to fluid buildup in…

Overview Vasovagal syncope happens when a person faints due to their body’s overreaction to specific triggers. Common triggers include seeing blood or experiencing intense emotional stress….

What Is Asthma? Asthma is a breathing disorder that causes airways to narrow, swell, and produce excess mucus. This makes breathing difficult and often leads to…

Overview Spider bites rarely cause serious harm. Most spiders can’t pierce human skin with their fangs, and only a few have venom strong enough to cause…