Several conditions can affect uterine contractility. Dysmenorrhea is characterized by painful menstrual cramps due to excessive uterine contractions. Preterm labor involves contractions that occur before 37 weeks of gestation, potentially leading to premature birth. Uterine atony is a condition where the uterus fails to contract adequately after childbirth, leading to postpartum hemorrhage. Additionally, conditions like endometriosis and fibroids can also impact uterine contractility.