According to Mayo Clinic, cramps develop during a woman's menstrual period when the uterus contracts to shed its lining. Hormone-like substances called prostaglandins trigger these contractions, and women with higher lev... More »

According to WebMD and KidsHealth, one way to stop or relieve common period cramps is to take pain relievers. KidsHealth recommends taking them a bit in advance of when the cramps are expected to start. WebMD notes that ... More » Health Women's Health Menstruation

Pelvic cramps in the absence of a menstrual period can be caused by several reasons, including ovarian cysts, hernias and cervical cancer, according to WebMD. Pelvic pain can also signify appendicitis or kidney stones. I... More » Health Pain & Symptoms

Light-colored spotting in place of a menstrual period is a common sign of implantation bleeding, the process that occurs when a fertilized egg adheres to the lining of the uterus, according to the American Pregnancy Asso... More »

Menstrual cramps can cause lower back pain during a woman's period, according to the National Institutes of Health. Painful menstrual periods are either primary or secondary dysmenorrhea. Primary dysmenorrhea is normal p... More » Health Women's Health Menstruation

Black period blood is usually just a sign that old blood is leaving the uterus toward the end of a woman's menstrual cycle, according to WebMD. It is likely not a cause for concern but can indicate in some cases that a w... More »

During the menstrual cycle, the female body prepares to nurture a fertilized egg by increasing hormone production and thickening the lining of the uterus, states WebMD. Monthly bleeding occurs when an egg is not fertiliz... More » Health Women's Health Menstruation