What does the mid-luteal phase refer to?

Generally, the mid-luteal phase refers to the period 5 to 8 days after ovulation. The detailed explanation is as follows:

The menstrual cycle is divided into three phases: the menstrual phase, the follicular phase, and the luteal phase. The luteal phase spans from after ovulation until the onset of the next menstrual period. It typically begins around days 10–15 of the menstrual cycle and is further subdivided into three stages: early luteal phase, mid-luteal phase, and late luteal phase. The mid-luteal phase occurs approximately 7 days after ovulation, when the corpus luteum is at its most active. During this time, it secretes large amounts of progesterone, which may cause symptoms such as breast tenderness. An ultrasound examination during this phase may show an enlarged corpus luteum, which is considered normal.

If a patient experiences any discomfort or abnormal symptoms, it is recommended to seek timely medical evaluation at a hospital to avoid delays in diagnosis and treatment.