Three methods of contraception are :
(i) Barrier method or mechanical method/ **/ Diaphragm- To prevent and ova. the meeting of sperms
(ii) Chemical method/ **** pills- Changes the hormonal balance of the female partners so that the eggs are not released.
(iii) Surgical method- To block the vas deferens in males/ vasectomy, or the fallopian tube (oviduct) in females/ tubectomy, to prevent the transfer of sperms or egg and hence no fertilization takes place.
(iv) IUCDs/ Loop or the copper-T placed in the **- To prevent pregnancy.
