Skin diseases A-Z Skin diseases H – K Progressive Macular Hypomelanosis January 30, 2025 / August 12, 2026 by Dick van Gerwen | Leave a Comment Symptoms The main symptoms of PMH include: Small, light-colored spots on the skin, generally a few millimeters to several centimeters in size. The spots typically appear on the arms, legs, and trunk. These spots tend to slowly expand and can increase in number over time. There is usually no itching or pain associated with the […] Read more » genetic skin disorder hypomelanosis macularis progressiva Increased skin pigmentation Light skin patches Loss of skin pigment Macular hypomelanosis Pigment loss Progressive pigment change Progressive skin condition Rare pigmentation disorder Rare skin condition Skin abnormality Skin changes skin discoloration Skin discoloration treatment Skin pigmentation Symmetrical skin discoloration
Skin diseases A-Z Skin diseases D – G Dermal nevus January 21, 2025 / August 12, 2026 by Dick van Gerwen | Leave a Comment Symptoms Moles appear as brown or black spots, usually flat, but sometimes raised, dome-shaped, or bumpy. They can vary in size, shape, and color, but typically have a regular shape and pigmentation. Unstable moles often have an irregular shape and various colors, such as brown, black, and sometimes reddish tints. Suspicious moles may grow larger, […] Read more » Benign mole Benign skin condition Benign skin growth Dermal naevus Mole Moles Naevus on the skin Naevus treatment Pigment spot Raised skin spot Skin abnormality Skin changes Skin growth Skin lump Skin naevus Skin tumor Skin wart
Skin diseases A-Z Skin diseases H – K Jessner’s Disease September 5, 2024 / August 12, 2026 by Dick van Gerwen | Leave a Comment Symptoms Red, raised patches Itching or burning sensation Mostly present on the face, neck, and back Causes The exact cause of Jessner’s disease is unknown, but it is thought to be related to the immune system or genetic factors. Diagnosis A dermatologist usually diagnoses the condition through a skin biopsy, often to rule out other […] Read more » Chronic skin disease chronic skin rash Increased skin sensitivity Itchy rash Jessner Jessner's disease Jessner's skin disease Reddish-brown skin spots Skin abnormality Skin changes Skin condition with spots Skin disease due to inflammation Skin disease on face Skin inflammation Skin problems on face Skin rash Treatment for Jessner's disease
Skin diseases A – C Skin diseases A-Z Acne May 31, 2024 / August 12, 2026 by Dick van Gerwen | Leave a Comment Symptoms Blackheads (open comedones) Pimples (closed comedones) Papules (red, inflamed bumps) Pustules (pus-filled pimples) Nodules (large, hard bumps under the skin) Cysts (fluid-filled bumps deeper in the skin) Causes Acne is caused by a combination of excessive sebum production, clogged pores, bacterial infections, and hormonal changes. Diagnosis Diagnosis is often made through visual inspection of […] Read more » acne Acne on the back Acne on the face Acne on the shoulders Acne scars Acne treatment Acne vulgaris blackheads Blocked pores comedones Hormonal acne Hormonal skin condition Inflammatory acne Oily skin Pimples Skin abnormality Skin rash Teenage pimples whiteheads zits
Skin diseases A-Z Skin diseases L – O Melasma May 30, 2024 / August 12, 2026 by Dick van Gerwen | Leave a Comment Symptoms Dark, irregular patches on parts of the face such as the cheeks, bridge of the nose, forehead, chin, and upper lip. Patches can also appear on other parts of the body that are often exposed to the sun, such as the forearms and neck. Causes Melasma is caused by an overproduction of melanin, the […] Read more » chloasma Dark spots on the skin Facial pigmentation Facial pigmentation spots Hormonal hyperpigmentation Increased pigmentation melasma Melasma treatment Pigment disorders Pigmentation spots Pregnancy mask Skin abnormality Skin changes during pregnancy skin discoloration Spots on the face Sun discoloration Sun spots
Skin diseases A-Z Skin diseases L – O Becker’s Nevus May 24, 2024 / August 12, 2026 by Dick van Gerwen | Leave a Comment Symptoms A large, light brown to dark brown colored spot on the skin. Usually visible on the shoulder, upper arm, or back. The spot may be hairy and sometimes feel thicker than the surrounding skin. May increase in size over time. Causes The exact cause of Becker’s Nevus is not known. It is suspected that […] Read more » Becker's mole Becker's naevus Becker's naevus symptoms Benign skin condition Hormonal skin condition Hormonal skin disorder Increased pigmentation Irregular pigment spot Large pigment spot Naevus treatment Pigment spot Skin abnormality Skin abnormality on the back Skin abnormality on the shoulder Skin changes in men Skin condition skin discoloration
Skin diseases A – C Skin diseases A-Z Cutaneous Horn May 17, 2024 / August 12, 2026 by Dick van Gerwen | Leave a Comment Symptoms The most noticeable symptom of a cutaneous horn is a hard, horn-like growth on the skin. This can vary in size from a few millimeters to several centimeters. The growth can be light to dark in color. Although a cutaneous horn is usually painless, it can sometimes cause discomfort or pain. Causes Cutaneous horns […] Read more » Abnormal skin growth Benign skin tumor Cancerous-like growth cornu cutaneum Hyperkeratotic skin condition Hyperkeratotic skin growth Skin abnormality Skin cancer-like growth Skin growth Skin hardening Skin horn Skin horn treatment Skin tumor Skin wart Solid skin growth Thickened skin Wart-like skin abnormality
Skin diseases A – C Skin diseases A-Z Atheroma Cyst (Epidermoid Cyst) May 8, 2024 / August 12, 2026 by Dick van Gerwen | Leave a Comment Symptoms A smooth, round lump under the skin A lump that slowly increases in size A painless lump A lump that can easily be moved with the fingers Sometimes a small opening in the skin through which a thick, white substance can be expelled Causes The exact cause of epidermoid cysts is not always known, […] Read more » Atheroma cyst Atheroma cyst treatment Benign skin cyst Blocked sebaceous gland Cyst on the skin Cyst removal Cyst under the skin Cyst with sebum Epidermal cyst Epidermoid cyst Painless skin cyst Sebaceous cyst Sebaceous tumor Skin abnormality Skin cyst Skin growth Skin nodule