Menstrual or period cramps are the uterus contracting to push out the menstrual flow. The hormone changes that happen during the menstrual cycle can also lead to cramping. Cramps usually happen just before or just when the period starts (the bleeding part of the menstrual cycle).
Cramps can feel like a dull ache or a sharp squeeze in the lower abdomen (the area between the belly button and groin) and may also cause pain or discomfort in the lower back, hips and thighs. The intensity of cramps can vary from person to person and can change throughout a person’s life. If the pain is interfering with your daily life, talk to a healthcare provider.