This document discusses different types of skin lesions. It defines skin lesions as abnormal skin growths or appearances compared to surrounding skin. There are two categories: primary lesions present from birth or over lifetime, and secondary lesions resulting from irritation of primary lesions. Several common conditions that cause skin lesions are described, including acne, cold sores, actinic keratosis, allergic eczema, impetigo, contact dermatitis, chickenpox, epidermoid cysts, boils, blisters, and warts. Each condition is briefly characterized by its appearance, location, causes, and symptoms.

1. IBN SINA COLLEGE OF NURSING
AND HEALTH SCIENCES
Junaid khurshid M.sc Nursing Tutor

2. SKIN LESIONS
• A skin lesion is a part of the skin that has an abnormal growth or
appearance compared to the skin around it.
• Two categories of skin lesions exist: primary and secondary.
• Primary skin lesions are abnormal skin conditions present at birth
or acquired over a person’s lifetime.
• Secondary skin lesions are the result of irritated or manipulated
primary skin lesions. For example, if someone scratches a mole
until it bleeds, the resulting lesion, a crust, is now a secondary skin
lesion.

3. Conditions that cause skin lesions
ACNE
• Commonly located in face neck
shoulders chest
• Breakouts are composed of
blackheads pimples and nodules
• If untreated may leave scars or
darken the skin

4. COLD SORES
• A cold sore is a red, painful, fluid-
filled blister that appears near the
mouth and lips
• The affected area will often tingle or
burn before the cold sore is visible.
• These blisters occur alone or in
clusters
• Blisters may reoccur in response to
stress, menstruation, illness, or sun
exposure

5. Actinic keratosis
• An actinic keratosis
is a thick, scaly, or
crusty skin patch
that’s typically less
than 2 centimeters
(cm)
• It appears on parts of
the body that receive
a lot of sun exposure
(the hands, arms,
face, scalp, and neck)

6. Allergic eczema
• Allergic eczema leaves
the skin itchy, red,
scaly.
• It’s often found on the
hands and forearms
and may resemble a
burn.
• It also causes blisters
that weep, ooze, or
become crusty.

7. Impetigo
• Impetigo causes an
irritating rash and fluid-
filled blisters that pop
easily and form a honey-
colored crust.
• The rash is often located
in the area around the
mouth, chin, and nose.
• The condition is common
in babies and children.

8. Contact dermatitis
• Contact dermatitis causes
itchy, red, scaly, or raw skin.
• A contact dermatitis rash has
visible borders and appears
where your skin touched the
irritating substance.
• It also causes blisters that
weep, ooze, or become
crusty.

9. Chickenpox
• Chickenpox leaves
clusters of itchy, red,
fluid-filled blisters
• A chickenpox rash is
accompanied by fever,
body aches, sore throat,
and loss of appetite

10. Epidermoid cysts
• Epidermoid cysts
are found on the
face, neck,
• Large cysts may
cause pressure and
pain.

11. Boils
• A boil is a red, painful, raised
bump with a yellow or white
center.
• It can appear anywhere on the
body, but is most common on the
face, neck, armpit, and buttock.
• It may rupture and weep fluid.
• It’s caused by the bacterial or
fungal infection of a hair follicle
or oil gland.

12. Blisters
• A blister is
characterized by a
watery, clear, fluid-
filled area on the
skin.
• It can be found
anywhere on the
body.

13. Warts
• A wart is a raised, rough bump
that may be found on the skin
or mucous membranes.
• It’s caused by many different
types of a virus called human
papillomavirus (HPV).
• A wart may occur singly or in
groups.