What is the effect of Progesterone only pills?
High-Yield Explanation
* Progestogen-only pills / Progestin-only Pills (POP) / Morning after pills - * Contraceptive pills * Contain only synthetic progestins & doesnt contain estrogen. * Mechanism: * Mucus thickening in neck of womb: # Penetration of sperm to reach egg and womb becomes difficult. * Prevents ovulation: * Lining of the uterus becomes thin # Feilized egg implantation is prevented * Advantages: * Doesn't interfere with breastfeeding * Also helps in premenstrual symptoms and painful periods REF : SHAW GYNECOLOGY