STDs can be prevented by taking the following measures -
1. Avoiding sex with unknown partners/multiple partners.
2. Using protection or condoms during coitus.
3. Consulting a qualified doctor in case of doubt for early detection and treatment of the problem.
(a) Surgical methods of contraception prevent gamete formation.
(b) All sexually transmitted diseases are completely curable.
(c) Oral pills are very popular contraceptives among the rural women.
(d) In E.T. techniques, embryos are always transferred into the uterus.