Menstruation is one of the most important crises in women's lives and the symptoms that women experience at this stage are among the most important challenges of care. Proving women's menstruation in these conditions can be considered as a main criterion in women's legal status, resulting in changes or decrease in their punishments. In Iranian law, especially the Criminal Procedure Code, some differences in the implementation of women's punishments, which include the postponement of the implementation of the punishment in pregnant women, have been enacted in support of them, but there are ambiguities and gaps in legislation and interpretation of the law regarding some of the conditions of women, such as menstruation. In some cases, the physical condition is an example of the disease, it changes the limits of women's obligations and responsibilities and can be one of the mental illnesses that affect the behavioral states of the individual, resulting in the disruption of the elements of the crime. Menstruation has no place in Iranian criminal law and the law has a structural and legal gap in this regard.