Dysmenorrhea refers to painful menstrual cramps of uterine origin that interfere with daily activities. It is broadly divided into primary and secondary types. Primary dysmenorrhea occurs without identifiable pelvic pathology, whereas secondary dysmenorrhea stems from an underlying structural or inflammatory condition within the pelvis. Pain typically begins just before or with the onset of menses and lasts for 48 to 72 hours. In Nigerian clinical practice, menstrual pain is often normalized by patients and families, leading to delayed presentation for care. Midwives must validate the client's pain experience rather than dismissing it as a normal part of womanhood.
Primary dysmenorrhea is directly linked to the excessive release of prostaglandins and leukotrienes in the secretory endometrium. As progesterone levels drop right before menstruation, the endometrium destabilizes, releasing these inflammatory mediators. Prostaglandins cause strong, uncoordinated myometrial contractions and vasoconstriction, leading to uterine ischemia and acute pain.
Secondary dysmenorrhea results from acquired pelvic pathology. It can start years after menarche, often in women over the age of twenty-five. Common structural causes include uterine fibroids, adenomyosis, and pelvic inflammatory disease (PID).
Midwives must screen for red flags that suggest secondary causes rather than simple primary cramps:
Evaluating a client with dysmenorrhea begins with a thorough menstrual and medical history. The midwife must determine the exact onset, character, timing, and severity of the pain, alongside its effect on daily routines. A bimanual pelvic examination helps detect uterine enlargement, adnexal masses, or nodularity in the rectovaginal septum suggestive of endometriosis.
When secondary causes are suspected, diagnostic investigations include a pelvic ultrasound to visualize pelvic organs and high vaginal swabs if infection is suspected. Ruling out pregnancy is mandatory before initiating any pharmacological therapy or diagnostic imaging in women of reproductive age.
Management of primary dysmenorrhea focuses on suppressing prostaglandin synthesis and relaxing the myometrium. Nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen are first-line agents and work best when taken at the very onset of bleeding or slightly before pain peaks. Combined oral contraceptives are highly effective for clients desiring contraception because they suppress ovulation and thin the endometrial lining, reducing prostaglandin release.
Non-pharmacological comfort measures include heat therapy applied to the lower abdomen, which improves pelvic blood flow and relieves muscle spasm. Midwives also provide empathetic counseling, acknowledging the client's physical discomfort and reassuring them that effective relief options exist.
Empowering clients with practical self-care knowledge improves their ability to manage symptoms independently. Midwives should educate clients on starting NSAIDs promptly at the start of menses rather than waiting for pain to become severe. Lifestyle modifications such as regular aerobic exercise, reducing caffeine intake, and maintaining a balanced diet can help minimize systemic inflammatory responses.
Midwives must also teach clients to recognize warning signs that require prompt medical re-evaluation, such as sudden high fever, foul-smelling vaginal discharge, or pain that suddenly worsens despite medication.