In some places, menstruation refers to the mother's sister, and the mother's sister is called aunt. In some places, menstruation refers to the mother's sister, and the mother's sister is called menstruation, which varies according to local customs.

Extended data:

Menstrual dad: aunt and dad. Daughter-in-law of menstruation: from mother and sister (the name of menstruation is aunt/sister, not cousin). (Older than myself): From my mother/sister/aunt/aunt. (Younger than myself): It's from my mother/aunt.

Male relatives of menstruation: from the mother's brother, (the name of menstruation is aunt/brother, not cousin/cousin). (older than himself): from my mother's brother/mother's brother/aunt's brother/aunt's brother. (Younger than myself): It's from my mother/aunt. Menstruating son-in-law: Sister from his mother.

(Sister's husband): daughter-in-law/daughter-in-law/daughter-in-law/daughter-in-law. (Sister's husband): daughter-in-law/daughter-in-law/daughter-in-law/daughter-in-law. Menstrual daughter-in-law: brother-in-law from mother/brother-in-law from mother.

Baidu encyclopedia-menstruation