Uterine contractions are the tightening and relaxing of the muscles in the uterus. These contractions play a crucial role during labor, helping to push the baby through the birth canal. They can vary in intensity and frequency, often becoming stronger and more regular as labor progresses. During pregnancy, some women may experience Braxton Hicks contractions, which are often referred to as "practice contractions." Unlike true labor contractions, these are usually irregular and do not lead to childbirth. Understanding the difference between these types of contractions can help expectant mothers know when to seek medical assistance.