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Articles
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Causes of Onychomycosis
Onychomycosis is caused by an infection of the nail unit, usually by dermatophyte fungi, although yeasts and non-dermatophyte molds can also be responsible. The condition develops when these organisms gain access to the nail, survive the nail’s normal defenses, and colonize the keratin-rich tissue of the nail plate, nail bed, or surrounding structures. In practical…
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Causes of Morphea
Morphea, also called localized scleroderma, develops when the immune system, connective tissue, and skin-repair processes become dysregulated in a way that leads to excess collagen deposition and tissue hardening. In other words, the condition does not arise from a single cause but from a combination of biological events that trigger inflammation, alter blood vessel behavior,…
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Causes of Menopause
Menopause is caused by the natural or induced loss of ovarian follicular activity, which leads to a sustained decline in estrogen and progesterone production and ultimately ends menstrual cycling. In biological terms, menopause develops when the ovaries no longer contain enough responsive follicles to support regular ovulation and cyclical hormone secretion. The condition is therefore…
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Causes of Melasma
Melasma is caused by an abnormal increase in pigment production and distribution in the skin, usually driven by a combination of hormonal signals, ultraviolet light exposure, and individual biological susceptibility. It develops when the cells that make pigment, called melanocytes, become overactive and deposit excess melanin in the upper layers of the skin. The condition…
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Causes of Melanoma
Melanoma is caused by genetic damage in melanocytes, the pigment-producing cells of the skin, that allows them to grow and divide uncontrollably. In most cases, this damage develops over time from a combination of ultraviolet radiation exposure, inherited susceptibility, and other biological factors that weaken normal control of cell growth. The condition arises when the…
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Causes of Measles
What causes measles? Measles is caused by infection with the measles virus, a highly contagious respiratory virus in the genus Morbillivirus . The disease does not arise from a single symptom or external irritation; it develops when the virus enters the body, multiplies in the lining of the airways and immune tissues, spreads through the…
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Causes of Lichen sclerosus
Lichen sclerosus is caused by a combination of immune-driven tissue injury, local skin fragility, and in many cases a background of genetic or hormonal susceptibility. It is not usually traced to a single cause. Instead, the condition develops when the body’s normal regulation of inflammation, skin repair, and tissue maintenance becomes disrupted, allowing chronic changes…