Yes, one of the diagnostic criteria for anorexia nervosa is amenorrhea. Amenorrhea is the absence of a menstruation for three or more months.
No, reptiles do not have menstrual cycles or periods like mammals do. Instead, they have reproductive cycles that are different from those of mammals.
No
This could be anorexia or anemia from lack of iron.
No, bearded dragons do not have menstrual cycles. They do not menstruate like humans or some other mammals.
No.
because it just does.
Yes.
Delayed menstrual cycles have been reported when taking Ciprofloxacin. The delay can also be caused by the urinary tract infection. Both can cause delayed menstrual cycles.
Once a month
No. Humans are the only mammals with menstrual cycles. Deer, as well as other mammals, have estrous cycles. http://en.wikipedia.org/wiki/Estrous_cycle
No, bearded dragons do not experience menstrual cycles or periods like humans do. They have a different reproductive system that does not involve menstruation.
The average menstrual cycles lasts 28 days - but different women may experience different menstrual cycle lengths, and cycles can change throughout a woman's life.