What causes painful periods and when should they be checked?

Painful periods, medically known as dysmenorrhea, are primarily caused by prostaglandins—hormone-like substances that trigger uterine contractions to shed the endometrial lining during menstruation. According to the American College of Obstetricians and Gynecologists, approximately 50% of menstruating individuals experience some degree of period pain.

Primary dysmenorrhea occurs without underlying medical conditions and typically begins within 1-2 years of first menstruation. The pain results from excessive prostaglandin production, causing intense uterine contractions that temporarily reduce blood flow to the uterus. This type usually improves with age or after childbirth.

Secondary dysmenorrhea develops due to underlying reproductive health conditions and often worsens over time. Common causes include:

• Endometriosis: Tissue similar to the uterine lining grows outside the uterus
• Uterine fibroids: Noncancerous growths in the uterine wall
• Adenomyosis: Endometrial tissue grows into the uterine muscle
• Pelvic inflammatory disease: Infection of reproductive organs
• Ovarian cysts: Fluid-filled sacs on the ovaries
• Cervical stenosis: Narrow cervical opening restricting menstrual flow

You should seek medical evaluation if you experience severe pain that interferes with daily activities, pain lasting more than 2-3 days, sudden changes in menstrual pain patterns, or pain accompanied by heavy bleeding, fever, or unusual discharge. The American College of Obstetricians and Gynecologists recommends consulting a healthcare provider when over-the-counter pain medications provide insufficient relief or when pain progressively worsens over time.

Additional warning signs requiring prompt medical attention include pain during intercourse, irregular bleeding between periods, nausea and vomiting with menstrual pain, or passing large blood clots. These symptoms may indicate serious conditions like endometriosis or fibroids that require specific treatment approaches.

Treatment options vary based on the underlying cause and may include nonsteroidal anti-inflammatory drugs (NSAIDs), hormonal birth control, or surgical interventions for structural abnormalities. Early diagnosis and appropriate treatment can significantly improve quality of life and prevent potential complications related to heavy menstrual bleeding.

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