1. Disorders, Diseases, and other Weird Stuff That Happens in the Skin
Acne
Disease of the sebaceous glands that produces blackheads or pimples
Whiteheads appear when a sebaceous gland becomes blocked
Blackheads form when this accumulated material oxidizes and dries

2. Alopecia Hair loss Usually sudden

3. •Fungal infections of the skin are called dermatophytosis
•Many have common names such as athlete’s foot and ring worms (common names are misleading)

4. Fungal infection (tinea pedis)
Athelete’s foot
Fungal infection (tinea pedis)
Usually in the skin  of the toes and soles

5. Actual name Tinea Corporis Not actually a worm
Ring Worm
Actual name Tinea Corporis
Not actually a worm
It is a fungal infection of the skin
Spread by skin-to-skin contact and items such as hairbrushes

6. •Congenital blemish or spot on the skin •Visible soon after birth
Birthmark
•Congenital blemish or spot on the skin
•Visible soon after birth
Google images: strawberry naevi

7. Boil
Bacterial infection (furuncle) of the skin -Produced when bacteria enter a hair follicle
Often caused by Staphylococcus aureus 
Enters through cuts in skin
People with immune system disorders, diabetes, poor hygiene or malnutrition (Vitamin A or E deficiency) are particularly susceptible to getting boils. However they may also occur in healthy, hygienic individuals.

8. Boil, continued
Hidradenitis suppurativa causes frequent boils.
Boils in the armpits can sometimes be caused by anti-perspirant deodorants.

9. Carbuncle
Bacterial infection Similar to a boil
Spreads into the subcutaneous layer

10. Cyanosis
results from poorly oxygenated hemoglobin -causes the skin  and blood to appear blue
common during heart failure and severe breathing disorders
You can not see cyanosis in the skin of black people (their dark melanin overshadows it), but it is apparent in their nail beds and mucous membranes

12. Cyst
Liquid filled sac or capsule
Often dangerous because they can compress nearby tissue

13. Decubitus Ulcer
(bedsores) - occur in bedridden patients who are not turned regularly or when they are dragged across the bed repeatedly.
The weight of the body puts pressure on the skin especially over bony projections
This causes a restriction of the normal blood supply, which results in cell death because of this lack of blood flow

14. Examples of bedsores

15. Impetigo
Contagious disease of bacterial origin
Characterized by pustules that rupture and become covered with loosely held crust
usually caused by the same streptococcus strain that causes strep throat, Streptococcus pyogenes;
may also be caused by Staphylococcus aureus.
Scratching may spread the lesions.

16. Examples of Impetigo

17. Burns
A burn is tissue damage and cell death caused by intense heat, electricity, UV radiation (sunburn) or certain chemicals (such as acids and bases)
There are few threats more serious to the skin than a burn

18. Burns, continued:
Two life threatening events occur in the case of burns:
Fluid loss – loses precious fluid and electrolytes through seepage
Dehydration and electrolyte imbalance can cause kidneys to shut down

19. 2) Infection- pathogens invade dead tissue.
Burns, continued
2) Infection- pathogens invade dead tissue.
Pathogens are bacterial and fungal in nature, and multiply rapidly. Burn tissue is sterile for 24 hours, but after that, the immune system becomes depressed (lowered)

20. First degree burns: only the epidermis is damaged
Not generally serious and heal in 2-3 days
2nd degree burns: epidermis and upper dermis (AKA partial thickness burns)
Red, painful with blisters.
3rd degree burns: destroy the entire thickness of the skin (AKA full thickness burns)

21. Regeneration is NOT possible – skin grafting must be done
Thirds degree burns, continued
The area that is burned is gray-whitened (blanched). NOT painful, since the nerve endings have been destroyed.
Regeneration is NOT possible – skin grafting must be done

22. Burns are considered critical (life threatening), IF:
25% of the body is covered in 2nd degree burns
10% of the body is covered in 3rd degree burns

23. The "Rule of Nines" is a standardized method used to quickly assess how much body surface area (BSA) has been burned. This rule is only applied to partial thickness (2nd degree) and full thickness (3rd degree) burns.
The rule of nines method divides the body into 11 regions, each accounting for 9 percent of the body’s surface area, PLUS and additional area surrounding the genitals accounting for 1%