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Home Gynecology and Obstetrics

Physiological methods of contraception

Dr.Galal Baligh by Dr.Galal Baligh
May 27, 2020
in Gynecology and Obstetrics
353 15
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Physiological methods of contraceptin

Physiological methods of contraceptin

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Contents hide
1 (1) Coitus interruptus:
2 (2) Coitus interfemora:
3 (3) Safe period:
4 (4) Lactational Amenorrhea Method (LAM):
4.1 * Mechanism:
4.2 * Advantages of LAM:
4.3 * Disadvantages of LAM:
5 Physiological methods of contraception PPT (power point presentation):
6 Physiological methods of contraception videos:
6.1 GCSE Biology -Contraception video

(1) Coitus interruptus:

Ejaculation outside vagina by withdrawal of male organ.

(2) Coitus interfemora:

Male organ is kept between the thighs.

* Disadvantages;

− Neurosis and anxiety.

− Excitement without satisfaction especially for female partner.

− Congested pelvis manifestations (menorrhagia, leucorrhoea) & prostatic hypertrophy in the male).

− 18 /HWY failure rate, as pre-ejaculatory fluid contain spermatozoa.

(3) Safe period:

* Avoid coitus during fertile days of woman.

* Advantages: – Controlled by couple themselves.

– Available, any couple can use it.

– No side effects.

* Disadvantages;

– Failure rate is high 24 per HWY as ovulation may occur at any time;

(the safe period is unsafe).

– Skills and motivation are required for proper use.

– Not provide protection against STDs.

– Regular cycles are the cornerstone for this method.

– Desire is not respected killing the emotional nature of the act.

* The most fertile days calculated by subtracting 18 days from the length of the shortest cycle had been ever happen and subtracting 11 days from the length of longest one.

* Methods:

– Symptothermal; basal body temperature is taken, a spike occurs with ovulation, and intercourse is avoided then.
– Cervical mucus; the usual tacky white-yellow cervical mucus changes viscosity into clear, slippery, stretchy discharge at ovulation. Intercourse is avoided then but allowed when the discharge is tacky.
– Calendar; counts from last period to predict next ovulation, avoiding intercourse during the predicted week.

 Physiological methods of contraceptin
Physiological methods of contraception

 

(4) Lactational Amenorrhea Method (LAM):

* Mechanism:

• During breast-feeding, suckling causes hormonal changes at the level of the hypothalamus that interrupt the pulsatile release of gonadotropin-releasing hormone. This, in turn, impairs LH surge and ovulation does not occur.

* Prerequisites:

• Women must be exclusively or nearly exclusively breast-feeding.

• Feedings must be every 4 hr during the day and every 6 hr at night.

• Supplemental feedings should not exceed 5% to 10% of the total.

• This method is more successful if the infant is <6 months old.

* Advantages of LAM:

– Available to any breastfeeding women.

– Effective, success ratio up to 98%. – Cheep.

– Used immediately postpartum, once lactation starts.

– Temporary method can be used till woman decides the suitable future method.

– Health benefits and psychological element of breast feeding for mother and infant.

* Disadvantages of LAM:

– Difficult application for some women due to social duties.

– Restricted method, not any woman can use, only breast feeders.

– Provide no protection against STDs.

– Limited duration, during lactation only (Short period).

Physiological methods of contraception PPT (power point presentation):

Physiological methods of contraception, introduction to contraception, lactational amenorrhea, natural contraception

Physiological methods of contraception videos:

GCSE Biology -Contraception video

Contraceptives are methods people use to prevent pregnancy. In this video we explore the many hormonal and non-hormonal types and how they work. We also briefly cover how pregnancy starts.

Tags: Contraception
Dr.Galal Baligh

Dr.Galal Baligh

OB-GYN Specialist

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