Our expert says:
It probably is blood. It is called hematospermia and can be caused by inflammation, infection or injury but sometimes just happen - let your GP have a look and test your urine for infection
See also http://www.medicinenet.com/blood_in_semen/article.htm
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal
advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.