Blood stains on the front of a man’s underwear may be caused by suffering from diseases such as glansitis, seminal vesiculitis, urethral calculi and so on. Patients need to choose the appropriate treatment according to different causes, such as general treatment, drug treatment, surgical treatment and so on. 1. Glans: long foreskin, private cleansing is not in place and other reasons may induce glans, resulting in patients with glans erosion bleeding, so that the front of the man’s underpants have blood stains. If it is because of bacterial infection induced glans, patients can follow the doctor’s instructions oral metronidazole, levofloxacin tablets and other antibiotic drugs to promote the elimination of inflammation. Usually should keep private hygiene dry, avoid coitus in the near future. 2. Seminal vesiculitis: E. coli and other pathogenic infections may induce seminal vesiculitis, so that the patient appeared blood sperm, resulting in men’s underwear in front of the blood. Patients can follow the doctor’s instructions to use sensitive antibiotic treatment, such as gram-positive bacteria infection and induced seminal vesiculitis patients, you can take oral cefuroxime sodium tablets, ampicillin tablets and other antibiotic drugs to treat, to play the effect of bactericidal anti-inflammatory. 3. Urethral calculi: Genetic, environmental and other factors may induce urethral calculi, resulting in patients with symptoms of hematuria, so that the front of the man’s underpants have blood stains. If the size of the stone is small, you can drink more water to promote the body of the stone discharge; if the size of the stone is large, you can follow the doctor’s instructions for extracorporeal shock wave lithotripsy and other surgery. There may be other reasons for the blood stains on the front of a man’s underwear, so it is recommended that the patient go to the hospital for a checkup to determine the cause of the disease and then follow the doctor’s instructions to treat the cause of the disease.