Ovulation is the process of release of an oocyte from the ovarian follicle. As mentioned earlier, it occurs on day 14 of the menstrual cycle. After the description of Ashtartava, Sushruta describes the destruction of Artava, i.e. Nashtartava, Bhavprakasha mentioned as Rajonasha, caused due to margavarodha in artavavaha srotas, by vata and kapha. Sushruta explains the ritukala in such a manner. The first 12 days of ritukala is kapha kala that means maturation of follicle from day 12-16 is considered pitta kala that means the rupture of follicle and release of a secondary oocyte. Many works have been done on Nashtartava, but Jyotishmatyadi kalka, indicated by Bhavprakasha as Kusumam Janyate, is still untouched. Hence, a non-hormonal and safer method has been selected.
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Khan et al. (2024) studied this question.
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