Dermatological and Venereal Diseases

What Is Dermatology?

Dermatology, also known as skin and venereal diseases, is the medical specialty concerned with the diagnosis and treatment of diseases affecting the skin, hair, nails, and mucous membranes. Dermatology is a broad field that includes both therapeutic and aesthetic applications.

Dermatologists diagnose and treat conditions using methods such as skin biopsy, allergy testing, laser therapies, cryotherapy, and cosmetic procedures. They also provide preventive approaches to protect and maintain skin health.

Which Diseases Does Dermatology Treat?

Dermatology deals not only with skin diseases but also with disorders affecting the hair, nails, and mucous membranes. In addition, skin manifestations of sexually transmitted diseases fall within the scope of dermatology.

Common and Potentially Dangerous Skin Diseases

Some skin diseases can be life-threatening if not diagnosed early. These include:

• Melanoma and other skin cancers
• Basal cell carcinoma
• Squamous cell carcinoma
• Stevens–Johnson syndrome
• Toxic epidermal necrolysis
• Pemphigus vulgaris
• Necrotizing fasciitis

Because these conditions may progress rapidly, early diagnosis is critically important.

Common Skin Diseases in Women

Due to hormonal changes, certain skin conditions are more frequently observed in women:

• Melasma (pregnancy mask)
• Adult-onset acne
• Rosacea

These conditions are often associated with hormonal fluctuations, pregnancy, stress, and environmental factors.

Common Skin Diseases in Men

Frequently seen skin diseases in men include:

• Psoriasis
• Seborrheic dermatitis
• Melanoma and other skin cancers

Symptoms are more commonly observed on the scalp and trunk.

Common Skin Diseases in Children

Because the immune system is still developing during childhood, some skin conditions are more common:

• Atopic dermatitis (eczema)
• Impetigo
• Chickenpox
• Hand, foot, and mouth disease

Rashes, itching, and signs of infection are the most typical symptoms.

What Are the Symptoms of Skin Diseases?

Skin diseases may present with a wide variety of symptoms, including:

• Itching, redness, and rashes
• Scaling or dryness
• Swelling and edema
• Fluid-filled blisters
• Color changes (darkening, lightening, or spots)
• Changes in the shape, color, or size of moles
• Open wounds or ulcers
• Hair loss
• Nail deformities
• Burning or stinging sensations

The presence of one or more of these symptoms requires dermatological evaluation.

What Causes Skin Diseases?

The causes of skin diseases are diverse. The main causes include:

1. Infections

• Bacterial: Impetigo
• Viral: Chickenpox, shingles
• Fungal: Athlete’s foot, ringworm
• Parasitic: Scabies

2. Autoimmune Diseases

Caused by abnormal immune system responses:

• Eczema
• Psoriasis
• Lupus

3. Allergic Reactions and Environmental Factors

• Urticaria
• Contact dermatitis

4. Genetic Predisposition

• Vitiligo
• Albinism

5. Hormonal Changes

• Acne
• Melasma

Regardless of the cause, accurate diagnosis and appropriate treatment are essential.

Diagnostic Methods Used in the Dermatology Department

The diagnostic process is supported by patient history, dermatological examination, and necessary tests.

Most Commonly Used Tests

• Skin biopsy
• Blood tests
• Patch test
• Skin scraping test
• Wood’s lamp examination
• Fungal and bacterial cultures
• Dermoscopy
• Tzanck test
• IgE level measurement
• Photo-patch test
• Genetic tests
• Skin pH test

These tests help identify the underlying cause of the disease and enable accurate treatment planning.