Why is the first urine in the morning very yellow?

　　The first urination in the morning being very yellow may be caused by reduced water intake during the night, dietary effects, urinary tract infection, prostatitis, cholecystitis, and other conditions. This situation can usually be improved through general treatments, medications, and other methods. If abnormalities persist, prompt medical attention is recommended. Detailed explanations are as follows:

　　1. Reduced water intake at night: During nighttime sleep, prolonged lack of fluid intake can cause urine to become concentrated in the bladder, increasing the concentration of pigments in the urine, which results in yellow-colored first morning urine. It is recommended to drink an appropriate amount of water before bedtime and replenish fluids promptly upon waking to alleviate urine concentration.

　　2. Dietary effects: Consuming excessive amounts of foods rich in carotenoids, such as carrots and pumpkin, or eating overly spicy and irritating foods during the previous evening meal may darken the color of morning urine, turning it yellow. Adjusting the diet, reducing the intake of such foods, and maintaining a light diet can help alleviate this condition.

　　3. Urinary tract infection: After a bacterial infection of the urinary tract, inflammatory secretions mix into the urine, causing morning urine to appear yellow. This is often accompanied by symptoms such as frequent urination, urgency, painful urination, and discomfort during urination. Follow medical advice to use medications such as Cefaclor Capsules, Levofloxacin Hydrochloride Tablets, or Sanjin Tablets, while increasing daily water intake to flush the urinary tract.

　　4. Prostatitis: When the prostate becomes inflamed, inflammatory substances enter the urine, causing morning urine to turn yellow. This is often accompanied by perineal discomfort, frequent urination, incomplete voiding, and lower back pain. Doctors typically prescribe medications such as Tamsulosin Hydrochloride Sustained-Release Capsules, Qianlieshutong Capsules, or Norfloxacin Capsules for treatment.

　　5. Cholecystitis: Inflammation of the gallbladder causes impaired bile excretion, allowing bilirubin to reflux into the bloodstream and be excreted through urine, resulting in yellow morning urine. This is often accompanied by symptoms such as right upper abdominal pain, nausea, vomiting, and fever. Doctors may prescribe medications such as Anti-Inflammatory and Gallbladder Pills, Ursodeoxycholic Acid Capsules, or Cefixime Dispersible Tablets to alleviate symptoms.

　　In daily life, it is important to develop a habit of regular hydration, avoid holding urine, maintain personal hygiene, and undergo regular check-ups of the urinary and biliary systems. If the symptom of yellow first morning urine persists without improvement or is accompanied by other discomforts, timely medical consultation is advised.