Patient's question:
How can I test a woman's ovulation period?Doctor's answer:
The method of calculating ovulation based on the menstrual cycle is also known as the calendar method. Both menstruation and ovulation are influenced by endocrine hormones from the pituitary gland and ovaries, exhibiting cyclical changes. The lengths of both cycles are consistent, occurring once each month, with ovulation occurring between two menstrual periods. A woman's menstrual cycle can vary in length, but the interval between the day of ovulation and the start of the next menstrual period is relatively fixed, generally around 14 days. Based on this relationship between ovulation and menstruation, it is possible to calculate the ovulation period according to the menstrual cycle. The calculation method starts from the first day of the next menstrual period and counts backward 14 days or subtracts 14 days to determine the ovulation day. The ovulation day, along with the 5 days before it and the 4 days after it, together constitute the ovulation period. This is the theoretical basis for the safe period method of contraception. For example, a woman with a 28-day menstrual cycle has her first day of menstruation on December 1. Her next menstrual period would then occur on December 29 (December 1 plus 28 days). Subtracting 14 days from December 29 gives December 15 as the ovulation day. The ovulation period would be from December 10 to 19, which includes the ovulation day and the 5 days before and 4 days after it. Apart from the menstrual period and ovulation period, the remaining time is considered the safe period.Basal body temperature measurement method. That is: the body temperature measured after waking up from a long period of sleep (usually in the morning) without any physical activity or speaking beforehand is the basal body temperature. Under normal circumstances, the basal body temperature of women of reproductive age is lower in the first half of the menstrual cycle and even lower during ovulation. After ovulation, it can suddenly or gradually rise by 0.3–0.6°C within 24 hours to a few days. Therefore, measuring the basal