In zootomy and dermatology, skin is the largest organ of the integumentary system made up of multiple layers of epithelial tissues that guard underlying muscles and organs.  Skin pigmentation (see: human skin color or coloring) varies among populations, and skin type can range from dry skin to oily skin.
 

This is a list of diseases of the skin.

* Acne
* Actinic keratosis
* Angioma
* Athlete's foot
* Aquagenic pruritus
* Argyria
* Atopic dermatitis
* Baldness
* Basal cell carcinoma
* Bed sore
* Eczema
* Genital wart
* Gestational pemphigoid
* Grover's disease
* Sunburn
* Tick bite
* Tinea barbae
* Tinea
* Tungiasis
* Urticaria (Hives)
* Vitiligo
* Warts
* Welt (Wheal)

Cancer
When cancer is accord cells loses their normal controlling mechanisms, and they are multiplying in an out-of-control fashion.

Thyroid Disease
The thyroid is located in the neck that produces hormones witch stimulate vital processes in every part of the body.

Skin Problems
Problems of skin can occur at any stage age. Some other diseases also effect your skin.

Nutrition
Best and good nutrition is makes you healthy. But due to overeating, eating the wrong type of food makes you unhealthy.