Mayo Clinic Q and A: Nasal mucus color — what does it mean?
2018年1月26日 · During a common cold, nasal mucus may start out watery and clear, then become progressively thicker and more opaque, taking on a yellow or green tinge. This coloration is likely due to an increase in the number of certain immune system cells, or an increase in the enzymes these cells produce.
Mayo Clinic Q & A: Chronic sinusitis symptoms resemble a cold, …
2015年3月3日 · In rare instances, you may get a bacterial infection as a result of a cold, resulting in acute bacterial sinusitis. If that happens, cold symptoms get worse after seven to 10 days. You also may have yellow or green nasal drainage, pain in your face or teeth, and a fever. Acute sinusitis lasts up to four weeks.
How Do I Tell the Difference Between Bile Reflux and Acid Reflux?
August 5, 2011 Dear Mayo Clinic: What is the difference between bile reflux and acid reflux? Answer: Bile reflux involves fluid from the small intestine flowing into the stomach and esophagus. Acid reflux is backflow of stomach acid into the esophagus. These conditions are often related, and sometimes differentiating between the two can be difficult. […]
The rainbow of urine colors: What’s typical, what’s not
2023年12月5日 · Regular urine color varies but usually ranges from clear to pale yellow. The exact hue depends on how much water you drink. Fluids dilute the yellow pigments in urine. So the more you drink, the clearer your urine looks. When you drink less, the yellow color becomes stronger. Some foods and medications can change the color of urine.
Unusual coronavirus (COVID-19) symptoms: What are they?
2020年6月29日 · Coronavirus disease 2019 (COVID-19) can cause a wide range of signs and symptoms. The most common are fever, dry cough and tiredness. Other symptoms include shortness of breath or difficulty breathing, muscle aches, chills, sore throat, headache, or chest pain. But COVID-19 can also cause symptoms you might not expect, including: Gastrointestinal symptoms. COVID-19 might cause mild ...
Mayo Clinic expert explains gastrointestinal symptoms related to …
2020年4月8日 · COVID-19 most commonly presents with respiratory symptoms, including cough and shortness of breath, as well as fever. However, digestive symptoms also can occur in patients with COVID-19, and with or without respiratory symptoms. In this Q&A, Dr. Sahil Khanna, a Mayo Clinic gastroenterologist, answers questions about gastrointestinal (GI) symptoms related to COVID-19. Watch: Dr. Sahil […]
Eye Irritation, Abrasion or Pink Eye: When to See an Eye Doctor
2016年1月20日 · When a child has a red eye, it can be hard to tell the difference between a scratch on the eye (abrasion) and an infection like pink eye. Both can cause a pinkish-red color to the white part of the eye and excessive tearing. If the child is not old enough to tell you what […]
What causes gastrointestinal bleeding and how serious is it really?
2020年10月12日 · Gastrointestinal (GI) bleeding is a symptom of a disorder in your digestive tract. The blood often appears in stool or vomit but isn't always visible, though it may cause the stool to look black or tarry. The level of bleeding can range from mild to severe and can be life-threatening. Sophisticated imaging technology, when needed, […]
Mayo Clinic Q and A: Allergies or a virus? How to tell the difference
2023年4月6日 · DEAR MAYO CLINIC: Every year I am plagued by springtime allergies.But in the last few weeks I have been experiencing congestion, runny nose and a persistent cough.
What to do if you get a respiratory infection: A Mayo Clinic …
2024年12月30日 · According to the Centers for Disease Control and Prevention, respiratory infections like colds, flu and RSV are rising across the U.S.