(Painful Menstrual Cycles, Menstrual Cramps)
Dysmenorrhea is the dull, throbbing pain in the lower abdomen that many women feel just before and during their menstrual cycles (periods). Most women have painful periods at some time in their life. In some women the pain is severe enough to interfere with normal activities.
There are two types of dysmenorrhea:
Primary dysmenorrhea: painful periods without an underlying cause, usually beginning during adolescence
Secondary dysmenorrhea: painful periods due to an underlying condition, such as endometriosis (a condition involving the lining of the uterus or womb) or infection, that can begin at any age
Primary dysmenorrhea has no known underlying cause, but appears to be due to high levels of prostaglandins in the uterus. Prostaglandins are hormone-like substances normally found throughout the body.
Secondary dysmenorrhea can be caused by:
- Ovarian cysts
- Pelvic inflammatory disease (infection of the female reproductive organs)
- Uterine fibroids (noncancerous growths in the uterus)
- Intrauterine contraceptive devices (IUDs)
- Scars inside the abdomen from previous surgery
- Inflammatory bowel disease
A risk factor is something that increases your chance of getting a disease or condition.
Risk factors for primary dysmenorrhea include:
- Age: less than 20 years old
- Early onset of menstruation (less than 12 years old)
- Depression or anxiety
- Attempts to lose weight (in women 14-20 years old)
- Heavy bleeding during periods
- Nulliparity (never having delivered a baby)
The presence of a known cause of secondary dysmenorrhea (see “Causes”) is a risk factor for developing the condition.
The pain associated with either primary or secondary dysmenorrhea is sharp or throbbing; it is typically located in the lower abdomen, and may radiate to the low back or thighs. Other symptoms may include:
Your doctor will ask detailed questions about your symptoms and medical history, and perform a pelvic examination.
Diagnostic tests may include:
- Pelvic ultrasound: a test that uses sound waves to examine structures in the pelvis
- Pelvic laparoscopy (pronounced: lap-ah-ROSS-ca-pee): a thin, lighted tube inserted through a small incision in the abdomen to view structures in the pelvis
These tests are usually performed to look for causes of secondary dysmenorrhea.
The treatment of secondary dysmenorrhea varies depending on the underlying condition, for example antibiotics for an infection or surgery to remove fibroids.
Primary dysmenorrhea is usually treated with medications and lifestyle changes.
- Nonsteroidal anti-inflammatory drugs (NSAIDS), such as ibuprofen or naproxen, to reduce levels of prostaglandins in the uterus and decrease pain
- Oral contraceptives, which prevent ovulation and reduce menstrual blood flow; this is particularly useful in women interested in contraception
- Using a heating pad on your abdomen or taking a warm bath can reduce the discomfort of dysmenorrhea.
- B vitamins, magnesium, and omega-3 fatty acid supplements may be helpful in some women.
To help reduce your chance of getting dysmenorrhea, take the following steps:
- Exercise regularly.
- Don’t smoke. If you smoke, quit.
- Drink caffeine and alcohol moderately.