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 and relief. Menstrual cramps are a common type of pain during periods and may be called dysmenorrhoea by doctors. Cramps are usually first experienced a year or two after starting having periods - starting menstruation. The pain can be mild or severe - and is usually felt in the lower abdomen or back. The cramping often begins just before or at the start of the period.