Normal men do not have blood in their ejaculate, if blood is present it is considered to be hematospermia, which is divided into functional hematospermia and organic hematospermia (seminal vesiculitis, prostatitis, etc.). Normal semen is a viscous liquid mixture consisting of spermatozoa and seminal plasma, which does not contain blood, so there is usually no blood in the ejaculate. If blood is found in the semen, consider hematospermia, an abnormal condition with symptoms of red or coffee-colored semen or semen with blood. There are two types of hematospermia: functional hematospermia and organic hematospermia. Functional hematospermia is caused by a sharp change in the pressure of the seminal vesicle glands when a man reaches orgasm, and it is related to overindulgence in sexual intercourse or prolonged sexual abstinence. Organic hematospermia is caused by certain diseases, commonly including seminal vesiculitis, prostatitis, and urinary tract tumors. If you find blood in semen after ejaculation, it is recommended to go to a regular hospital for relevant examination and clear diagnosis.