shoulder joint, the ball and socket articulation of the humerus with the scapula. The joint includes eight bursae and five ligaments, including the glenoidal labrum that deepens the articular cavity and protects the edges of articulating bones. It is the most mobile joint in the body. Also called humeral articulation.
It is common for young women to have irregular periods when they first begin to menstruate. This means that ovulation (when a womanâs body makes eggs) may not happen for a few months or even for a few years. So you may not have menstrual cramps when you first begin your period. After one, two, or three years, when your hormonal system is more mature, you might have more severe menstrual cramps.
Menstrual cramps are pains in a woman's lower abdomen that occur when her menstrual period begins (or just before) and may continue for two to three days. They may be throbbing or aching and can be dull or sharp. Symptoms can range in severity from a mild annoyance to severe pain that interferes with normal activities.