What causes high white blood cells in urine?

Elevated white blood cells in urine may be caused by intense physical exercise, negative emotions, kidney stones, glomerulonephritis, or rheumatoid arthritis. It is recommended to seek medical attention promptly, identify the underlying cause, and receive symptomatic treatment under the guidance of a qualified physician. Specific analyses are as follows:

1. Intense physical exercise: After strenuous activities such as long-distance running or football, muscle strain may occur, leading to increased metabolic waste products. This could result in a mild elevation of white blood cells in the urine. This is a normal phenomenon and typically resolves on its own with adequate rest, provided no other discomfort symptoms are present.

2. Negative emotions: Anxiety, stress, and other negative emotional states may alter hormone levels in the body, thereby affecting white blood cell levels in the urine. It is advisable to reduce work- or study-related stress, adjust daily routines, and, if necessary, consult a professional psychologist for counseling.

3. Kidney stones: These may result from poor dietary habits or insufficient fluid intake. Stones can irritate the urinary tract mucosa, potentially causing urinary tract infections, which may lead to elevated white blood cells in urine. Symptoms may also include back pain or abdominal pain. Patients are advised to strictly follow medical instructions when using medications such as tamsulosin hydrochloride sustained-release capsules, potassium sodium citrate granules, or dl-hyoscine butylbromide tablets.

4. Glomerulonephritis: This condition may be caused by prolonged overexertion or genetic predisposition. The disease may impair glomerular filtration function, increasing the risk of secondary infection and consequently elevating white blood cells in urine. It is often accompanied by hematuria (blood in urine) and edema (swelling). Patients should follow medical advice when using medications such as furosemide injection, methylprednisolone tablets, or spironolactone tablets.

5. Rheumatoid arthritis: This is often associated with microbial infections or prolonged exposure to cold environments. The disease may trigger systemic inflammatory responses, which can affect the urinary system, leading to increased white blood cell levels in urine, along with joint pain. Patients are advised to strictly adhere to medical instructions when using medications such as Qingpeng ointment, hydroxychloroquine sulfate tablets, or azathioprine tablets.

In daily life, it is recommended to adjust dietary habits by consuming light, easily digestible foods such as lotus root starch and egg custard, while avoiding excessive fatigue, which may help reduce the likelihood of developing the aforementioned symptoms.