The paper discusses a case of 31-year-old patient with haemophilia A with the multiple vascular changes on the scrotum. Haemophilia is hereditary genetic disorder and is also the genetic plasma’s diathesis. It is the recessive sex-linked X chromosome disorder. It is more likely to occur in males than females, women are transmitters of mutant gene. In Poland, a prevalence of haemophilia A is 1:16 000, there are about 2000 of registered patients. The abovementioned vascular changes of the scrotum were a both relative cosmetic and psychological problem of the patient, therefore a resection was performed. The patient’s classification to surgery was difficult because of haemophilia A. A risk of bleeding was increased in resection of vascular changes. The gold standard of preoperative treatment in patients with haemophilia is cumulative therapy of factor VIII. To reduce a risk of bleeding, the laser CO2 CTL 1401 was used. This article presents three phases of treatment:preoperative treatment, surgery and postoperative treatment, with success. The use of laser surgery caused a shortening of surgery’s time. In the surgery there were any complications. After four days of hospitalization the patient was in good condition, there was noticed no bleeding. The authors claimed that CO2 laser surgery is very prospective way in advanced laser technology in patients with haemophilia. It provides standard general precautions and high availability of medical device.