The first urine after getting up in the morning is called morning urine in medicine. Morning urine is mostly urine that remains in the bladder for more than 6 hours. Due to the "concentration" effect of the kidneys, the urine certainly looks yellower. In most cases, yellow urine is a manifestation of mild dehydration. If the urine starts to fade after timely rehydration, it means everything is normal. The color of urine is not only related to the amount of water we drink, but also the food we eat. If you have recently eaten a lot of carrots or taken multivitamin tablets, your urine will turn bright yellow, so don’t worry too much.
After you take certain medicines, your urine will also change color. For example, if you take berberine, your urine will turn yellow; if you take rifampicin, your urine will turn red; if you take levodopa, your urine will turn black. Only when a person has ruled out the influence of drinking water, food and drugs, the color of the urine is still abnormal, which may be caused by certain diseases. The urine color changes that we need to be alert to most are mainly two types: One is light red or blood red, the most common cause is urinary system disease, of course, including kidney disease; the other is dark brown or thick Brown, the most common cause is liver and gallbladder disease. In addition to changes in urine color, these patients also have other symptoms such as fatigue, anorexia and pain.
To be honest, just wanting to judge a person's health by observing the change in urine color is almost an impossible task. Even professional doctors cannot diagnose diseases so arbitrarily. Clinically, routine urine examinations are often used to help doctors diagnose diseases. We might as well understand some knowledge in this area:
1. The pH of urine is also the pH value. The normal range is 4.5-8, which can measure the kidneys. Maintain a stable function of the body's internal environment; if the pH value increases and becomes alkaline, it may be caused by alkalosis, renal tubular acidosis and pyelonephritis; if the pH value decreases and becomes acidic, it may be caused by fever, acidosis, gout and various types Caused by chronic kidney disease.
2. Urine specific gravity, the normal range is 1.005-1.025, which can measure the function of the kidneys to concentrate and dilute urine; the decrease of urine specific gravity indicates that the renal concentration function is damaged, which is common in diabetes insipidus; the increase of urine specific gravity is seen in dehydration , High fever and acute nephritis, etc.;
3, urine glucose, which is the concentration of glucose in urine, mainly seen in diabetes, may also be caused by hyperthyroidism or chronic liver disease;
4, urine ketone bodies, in urine Ketone bodies should not appear. Increased ketone bodies are caused by the body's large consumption of fat, mostly related to diabetic ketoacidosis;
5. Urinary nitrite, only when bacterial When urinary tract infection occurs, nitrite will be detected in the urine;
6. Urine protein. Protein cannot be detected in the urine of normal people. Once urine protein appears in the urine, it often indicates The occurrence of nephropathy;
7. Urine bilirubin. Bilirubin will not appear in the urine of normal people. Once detected, it indicates that the hepatobiliary system has disease.
Only by routine urine tests, doctors can only find clues to certain diseases, and more evidence is needed to confirm the diagnosis. In the same way, only by observing changes in the color or shape of urine, it can only be preliminarily determined that there may be some abnormal conditions in the body. In most cases, these abnormal conditions are only physiological or temporary. Only those urine changes that last for a long time or have obvious accompanying symptoms can signal the occurrence of certain diseases.
