Final answer:
Premenstrual syndrome (PMS) is a cyclic recurrence that occurs in the luteal phase of the menstrual cycle. Symptoms include mood swings, bloating, breast tenderness, and fatigue. PMS can also be associated with other conditions such as menstrual migraines, dysmenorrhea, and endometriosis.
Step-by-step explanation:
Premenstrual syndrome (PMS) is a cyclic recurrence that occurs in the luteal phase of the menstrual cycle. During this phase, which occurs after ovulation, the levels of estrogen and progesterone in the body fluctuate. These hormonal changes can lead to various symptoms such as mood swings, irritability, bloating, breast tenderness, and fatigue.
Additionally, PMS can also be associated with other conditions such as menstrual migraines, dysmenorrhea (painful periods), and endometriosis. It's important to note that not all women experience PMS symptoms, and the severity and type of symptoms can vary from person to person.