What are the signs and symptoms of disease?

Signs of disease are objective changes in the body that can be observed by a healthcare professional, such as:

* Physical signs: These include things like swelling, rash, bruising, or abnormal growths.

* Vital sign abnormalities: These include changes in temperature, heart rate, respiratory rate, or blood pressure.

* Laboratory test abnormalities: These include changes in bloodwork, urine tests, or imaging studies.

Symptoms of disease are subjective changes in the way a person feels or functions, such as:

* Pain: This is one of the most common symptoms of disease, and it can vary in severity from mild to severe.

* Fatigue: This is a feeling of extreme tiredness or exhaustion that is not relieved by rest.

* Weight loss or gain: Unexplained weight loss or gain can be a sign of disease.

* Fever: This is a rise in body temperature above the normal range.

* Cough: This is a common symptom of respiratory infections, such as the common cold and flu.

* Shortness of breath: This is a feeling of difficulty breathing.

* Nausea: This is a feeling of queasiness or sickness in the stomach.

* Vomiting: This is the forcible expulsion of stomach contents through the mouth.

* Diarrhea: This is the passage of loose, watery stools.

* Constipation: This is the passage of hard, dry stools that are difficult to pass.

* Headache: This is pain in the head that can range from mild to severe.

* Dizziness: This is a feeling of lightheadedness, giddiness, or unsteadiness.

* Confusion: This is a state of mental disorientation or impaired thinking.

* Seizures: These are episodes of uncontrolled electrical activity in the brain that can cause convulsions, loss of consciousness, or both.

It is important to note that not all signs and symptoms of disease are specific to a particular condition. For example, fever can be a sign of many different infections, while pain can be a symptom of anything from a muscle strain to a heart attack. However, by paying attention to your body and reporting any changes to your healthcare professional, you can help to ensure that any underlying medical conditions are diagnosed and treated promptly.