White discharge on male underwear may be caused by the following reasons:
1. Sexual stimulation: When men receive sexual stimulation, the prostate secretes prostatic fluid, and there may be a small amount of semen discharged from the urethra, which can cause white discharge on underwear. This is usually a normal phenomenon and does not require special treatment, but it is important to pay attention to personal hygiene and change underwear frequently.
2. Phimosis or excessive foreskin: Some men may develop smegma due to excessive foreskin or phimosis. If local hygiene is not taken seriously, smegma may adhere to underwear and form white discharge. It is recommended to pay attention to personal hygiene and cleanliness in daily life, clean frequently, and if necessary, undergo circumcision under the guidance of a doctor.
3. Inflammation or infection: Prostatitis: Prostatitis patients secrete a large amount of prostatic fluid, which may be discharged uncontrollably during urination or sleep, resulting in white discharge on underwear. At the same time, patients may experience symptoms such as difficulty urinating and pain in the perineum. Use relevant medications according to medical advice for treatment. Balanitis: Balanitis caused by bacterial or fungal infection, which may lead to abnormal secretion of the glans penis, mostly white, and easy adhesion to underwear. Patients may experience symptoms such as redness, swelling, and pain in the glans penis. Antibacterial or antifungal drugs should be used for treatment under the guidance of a doctor. Urethritis: including gonococcal urethritis and non gonococcal urethritis. Gonococcal urethritis is caused by Neisseria gonorrhoeae, and the secretions are mostly yellow white or yellow green in color; Non gonococcal urethritis may be caused by mycoplasma, chlamydia, etc., and the secretion is usually a thin white liquid. These secretions may all adhere to underwear. Patients need to be treated with appropriate antibiotics based on the type of pathogen.
The above information is for reference only and cannot replace professional medical advice. If white discharge persists on men's underwear accompanied by other symptoms, they should promptly go to the hospital for examination and treatment.