What causes frequent urination and yellow urine?
Generally, frequent urination with yellow urine may be caused by factors such as insufficient water intake, dietary effects, urethritis, prostatitis, or overactive bladder syndrome. It is recommended to seek timely medical attention, identify the underlying cause, and undergo symptomatic treatment under a doctor's guidance. Detailed explanations are as follows:

1. Insufficient water intake: A low daily water intake can lead to concentrated urine, resulting in yellow urine. The bladder may also become easily irritated, causing frequent urination. Increasing daily water consumption to maintain light yellow or colorless urine can help alleviate symptoms.
2. Dietary effects: Excessive consumption of spicy or irritating foods, or foods containing pigments such as carrots and pumpkin, may cause yellow urine. Spicy foods can also irritate the urinary tract and lead to frequent urination. Adjusting the diet, reducing intake of such foods, and consuming more light vegetables and fruits can improve these symptoms.
3. Urethritis: Bacterial infection of the urethra causing inflammation may lead to frequent urination and yellow urine, often accompanied by urgency and painful urination. Patients may follow medical advice to take medications such as levofloxacin tablets, cefuroxime axetil tablets, or Sanjin tablets, while drinking more water to promote urination.
4. Prostatitis: Infection or irritation of the male prostate may cause frequent urination and yellow urine, possibly accompanied by discomfort in the perineal area. Patients should follow medical advice to take medications such as tamsulosin hydrochloride sustained-release capsules, Qianlieshutong capsules, or norfloxacin capsules. Additionally, avoiding prolonged sitting and taking warm sitz baths may help alleviate symptoms.
5. Overactive bladder syndrome: Abnormal bladder function leads to frequent urination, and yellow urine may occur when urine becomes concentrated, possibly accompanied by urgency. Patients may follow medical advice to take medications such as tolterodine tartrate tablets, solifenacin succinate tablets, or mirabegron sustained-release tablets. If medication proves ineffective, bladder augmentation surgery may be considered to increase bladder capacity and improve symptoms.
In daily life, maintaining personal hygiene, changing underwear regularly, and keeping the urethral opening clean are important. Avoid holding urine; develop a regular urination habit; eat a light diet and reduce intake of high-salt and high-sugar foods, which helps maintain urinary system health.