The testicles receive oxygen-loaded blood from two testicular arteries — one artery for each side from the scrotum. Equally, there are also two testicular veins that transportation oxygen-depleted blood again towards the guts. 改善血流和肌肉张力可能降低发生静脉曲张的风险。治疗静脉曲张所致不适的措施同样有助于预防不适。尝试以下措施： My medical doctor said they're not hazardous, but I’m... https://www.sgvascularctr.com/varicose-vein-treatment-in-singapore-comprehensive-advice-for-optimal-results/