Sperm cramps, also known as epididymal hypertension, are an uncomfortable and often painful sensation experienced by some individuals following orgasm. The term "sperm cramps" is not a formal medical term, but it is commonly used to describe discomfort or pain in the lower abdominal region or testicles that is thought to be related to sperm production or ejaculation. The level of pain associated with sperm cramps varies from person to person, with some experiencing a dull ache and others feeling a sharp, cramp-like pain. The exact cause of sperm cramps is unknown, but researchers have found that infections of the reproductive organs, physical activity, and structural abnormalities in the reproductive system can lead to testicular discomfort or pain. If the pain is persistent or intense, its time to reach out for medical help.