Dermatographia, also known as dermatographism, is a common form of physical urticaria in which minor scratching or pressure on the skin causes raised, red lines or welts. The term means “skin writing,” as markings appear shortly after the skin is stroked. It is generally harmless and not contagious, though symptoms can be uncomfortable and recurrent. Symptoms Symptoms usually appear within …

Dermatofibrosarcoma Protuberans is a rare, slow-growing soft tissue cancer that originates in the deep layers of the skin, particularly the dermis and subcutaneous tissue. It typically presents as a firm skin lesion that gradually enlarges over time. Although it grows slowly and rarely spreads to distant organs, it has a high tendency to recur locally if not treated adequately. Symptoms …

Seborrheic dermatitis is a common, chronic skin condition that causes red, inflamed skin with greasy or flaky scales. It most often affects areas of the body rich in oil-producing glands, such as the scalp, face, sides of the nose, eyebrows, ears, chest, and upper back. On the scalp, it is commonly known as dandruff. The condition tends to wax and …

Teen depression is a serious mental health condition that affects how adolescents think, feel, and behave. It goes beyond normal mood changes associated with growing up and can interfere with school performance, relationships, and daily activities. Teen depression is common and treatable, but it often goes unrecognized because its symptoms may be mistaken for typical teenage behavior. Early identification and …

Having a baby is a life-changing experience. Being a parent is exciting but can also be tiring and overwhelming. It’s normal to have feelings of worry or doubt, especially if you are a first-time parent. However, if your feelings include extreme sadness or loneliness, severe mood swings and frequent crying spells, you may have postpartum depression. Postpartum depression (PPD) is …

Dengue fever is a mosquito-borne viral illness caused by the dengue virus and transmitted primarily by Aedes mosquitoes. It is common in tropical and subtropical regions and can range from a mild flu-like illness to a severe, life-threatening condition. Early recognition and appropriate medical care are important to reduce complications. Symptoms Symptoms usually appear 4 to 10 days after being …

Vascular dementia is a type of dementia caused by reduced blood flow to the brain, leading to damage of brain cells. It often occurs after a stroke or as a result of multiple small strokes, but it can also develop gradually due to chronic narrowing or blockage of blood vessels supplying the brain. Vascular dementia is the second most common …

Lewy body dementia is a progressive brain disorder that affects thinking, behavior, movement, and alertness. It is caused by abnormal deposits of a protein called alpha-synuclein, known as Lewy bodies, which build up in the brain and interfere with normal brain function. Lewy body dementia shares features with both Alzheimer’s disease and Parkinson’s disease. People with this condition may experience …

Frontotemporal dementia is a group of progressive brain disorders that primarily affect the frontal and temporal lobes of the brain. These areas are responsible for personality, behavior, language, and decision-making. Frontotemporal dementia often develops at a younger age than other forms of dementia, typically between 45 and 65 years. The condition gradually worsens over time and leads to significant changes …

Dementia is a progressive neurological condition characterized by a decline in cognitive function severe enough to interfere with daily life and independence. It affects memory, thinking, reasoning, behavior, and the ability to perform everyday activities. Dementia is not a single disease but a broad term encompassing various disorders, with Alzheimer’s disease being the most common cause. It primarily affects older …