Why is my urine yellow when I go to the toilet?

1. Light yellow is the normal color of urine

Urine originates from the glomerulus of the kidney, and enters the bladder through the renal pelvis and ureter through the action of the collecting system such as the renal tubules. Urine needs to pass through a gate to flow out of the bladder, which is the urethral sphincter. Male urine also needs to pass through the prostate section of the urethra before it can be discharged from the body. Any disease in any organ that the urine passes through will affect the color of the urine. The color of normal human urine is light yellow. Its pigment mainly comes from uroflavin and a small amount of urobilin and urohemoglobin, which are products of the body's metabolism. When you drink less water or sweat more, the urine volume decreases, the urine becomes concentrated, and the urine color turns dark yellow. When drinking a lot of water, the urine volume increases, the urine becomes dilute, and the urine color becomes lighter or even transparent.

2. Dark yellow urine may indicate liver problems

The urine of normal people is light yellow. If the urine is dark yellow, such as tea color or butter color, be careful of bilirubinuria. The presence of bilirubin in the urine may be a sign of liver damage, such as hepatitis A, hepatitis B and other types of hepatitis. In addition, patients with bile duct stones, parasitic bile duct obstruction, etc. may also have this situation. In addition, normal human urine should be clear and transparent, without impurities. If you find that your urine is turbid and contains white flocs, it may be a urinary tract infection or other disease. If you find that the color of your urine is different, you must go to the hospital for examination in time to avoid delaying the best treatment period of the disease.

3. What are the causes of yellow urine due to physiological factors?

1. Yellow morning urine

If your first urine after getting up in the morning is yellow, don't worry. Because after a whole night of rest, the urine in the body will be concentrated, the waste content will be higher, and the color will be yellower. Especially when you drink less water, the color of your morning urine will be darker. This is normal and there is no need to worry.

2. Food causes

Eating vegetables and fruits with natural pigments, such as carrots, can also change the color of your urine. However, this phenomenon is only temporary. If you drink a few more cups of water, it will gradually return to normal.