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Category: biologybiology

Физиологические изменения кожи и волос при беременности

1.

PHYSIOLOGICAL
CHANGES
OF
SKIN AND HAIR
IN PREGNANCY
B Y – R I T I K G U P TA
GROUP - 173(2)

2.

PREGNANCY AND SKIN
CHANGES
• For many women,
pregnancy brings glowing
skin, rosy cheeks, and
shiny hair.
• Others, however, can
experience skin changes
that aren’t so attractive,
including acne, dark spots,

3.

ACNE
• Increased blood flow and
oil production are the
factors behind the radiant
pregnancy glow. That
radiance sometimes
comes with a price, as the
increased oil production
can result in acne.

4.

DARK SPOTS AND
PIGMENTATION
• A natural increase in
melanin during pregnancy
is responsible for areas of
darkened skin, especially
on the face, around the
nipples and white line of
the abdomen, being
particularly expressed in
brunettes.

5.

CHLOASMA UTERINUM
• These are irregular
brownish or blackish spots
especially on the face that
occur sometimes in
pregnancy and in disorders
of or functional changes in
the uterus and ovaries.
• Most of these brownishcolored areas fade over
time, often within a few
months after giving birth.
“mask of pregnancy”

6.

LINEA NIGRA
• Linea nigra, often referred to as
a pregnancy line, is a
linear hyperpigmentation that
commonly appears on the
abdomen.
• The brownish streak is usually
about a centimeter (0.4 in) in
width. The line runs vertically along
the midline of the abdomen from
the pubis to the umbilicus, but can
also run from the pubis to the top
of the abdomen.
Fair-skinned women show this
phenomenon less often than
women with darker
pigmentation. Linea nigra typically
disappears within a few months
after delivery.

7.

STRIAE GRAVIDUM
(STRETCH
MARKS)
• Although most women expect to have some stretch marks on
their belly with pregnancy, many are surprised to also find these
pink or red stripes on their breasts, buttocks, and thighs.
• In fact, stretch marks can happen anywhere there is rapid
growth and stretching of the skin.

8.

STRIAE GRAVIDUM
On the abdomen and thighs
the longitudinal strips 5-6 cm
in length, and about 0.5 cm in
width appear. At the beginning
they are rosy, but later they
become pale and more dense.
They are supposed to be
caused by detachment of
elastic layer of skin from other
layers due to rise of circulatory
hormone level of adrenal
glands. They are called striae
gravidarum.

9.

SPIDER VEINS AND VARICOSE
• VEINS
Spider veins come from hormonal changes
and increased blood volume during
pregnancy. They appear as tiny red veins on
the face, neck, and arms. The redness
should fade after the baby is born.
• Varicose veins happen because of the
weight and pressure of the uterus
compressing the veins. This decreases the
blood flow from the lower body. The veins in
the legs become swollen, sore, and
blue. Varicose veins can also be found on
the vulva, vagina, and rectum
(hemorrhoids).
• Typically, varicose veins are cosmetic and
clear up after delivery.

10.

OTHER CONDITIONS
• Itchy skin
• Itchy skin is common, especially in
the winter, when skin is dry and
easily irritated. Some women
develop a rash or itchy bumps that
are caused by a variety of
conditions.
• Hair growth
• Hormones of pregnancy can
increase hair growth. Many women
notice that their hair is thicker and
healthier looking. Sometimes those
hormones cause hair growth in
other places, too, like on the face

11.

HAIR CHANGES DURING
PREGNANCY
• Hormonal changes during pregnancy can affect
your hair, making it thicker or thinner..
• Your hair has a natural life cycle. Each individual
hair grows, then rests for 2 or 3 months before
being pushed out by a new hair growing in that
follicle. In pregnancy, this cycle changes.

12.

THICK HAIR
• Many women experience their
hair feeling thicker at around 15
weeks of pregnancy.
• This is not because each hair
strand itself becomes thicker, but
because the hair stays longer in
the growing phase of its cycle,
which means that less hair falls
out than usual. This is due to an
increase in the
hormone estrogen.

13.

THIN HAIR
• Some women experience more of their hair
falling out during pregnancy. This is due to
a decrease in estrogen, which may happen
as a result of the following:
• a hormonal imbalance during pregnancy
• stopping the oral contraceptive pill
• experiencing
an abortion, miscarriage or stillbirth
• It is also common for women to experience
hair loss after pregnancy when their
estrogen returns to normal levels. This
causes the additional hair from the growth
phase to change to the resting phase,
which then falls out more than usual, until
around 3-4 months after child is born.

14.

THANK YOU
FOR
YOUR
ATTENTION !!!
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