Backache during ovulation is a common physiological phenomenon that usually occurs in the middle of a woman's menstrual cycle, that is, between the 14th and 20th days of the menstrual cycle. This phenomenon may be caused by a variety of factors, including the following:

2. Uterine contractions: During ovulation, the uterus contracts and expels the embryo. This contraction can cause pain in the lower back, especially during expulsion of the embryo.

3. Egg discharge: Eggs are the core substance in the female menstrual cycle. They are discharged between the 14th and 20th days of the menstrual cycle. When an egg is released, the level of hormones in a woman's body changes dramatically, causing backache.

4. Stress: A woman’s hormone levels during the menstrual cycle are also affected by stress, which may lead to backache.

5. Other factors: There are other factors that may cause backache, such as exercise, diet, age and disease.

Backache during ovulation is a common physiological phenomenon that usually does not require special treatment. If the symptoms of backache are severe or last for a long time, it is recommended to consult a doctor.