Which of the following is included in non-medicated $IUDs$?

Surgical removal of testes is known as

The method of sterilization is:

Find out the correct aspects of lactational amenorrhoea.
$I$. Ovulation does not occur during the lactational period.
$II$. Chances of the failure of contraception are almost nil up to six months following parturition.
$III$. Side effects are almost nil.
$IV$. It is a natural method of contraception.
$V$. It increases phagocytosis of sperms.

Surgical removal or cutting and ligation of the ends of the oviduct is known as

Explain the difference between condoms and diaphragms.