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Psoriasis is a long-lasting, noncontagious autoimmune disease characterized by patches of abnormal skin. [4][5] These areas are red, pink, or purple, dry, itchy, and scaly. [8][3] Psoriasis varies in severity from small localized patches to complete body coverage. [3] Injury to the skin can trigger psoriatic skin changes at that spot, which is ...
An estimated 30% of individuals with autism spectrum disorders engage in self-harm at some point, including eye-poking, skin-picking, hand-biting, and head-banging. [ 58 ] [ 59 ] According to a meta-analysis that did not distinguish between suicidal and non-suicidal acts, self-harm is common among those with schizophrenia and is a significant ...
The skin weighs an average of four kilograms, covers an area of two square metres, and is made of three distinct layers: the epidermis, dermis, and subcutaneous tissue. [1] The two main types of human skin are: glabrous skin, the hairless skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin. [3]
30,000 (2015) [ 4 ] Rheumatoid arthritis (RA) is a long-term autoimmune disorder that primarily affects joints. [ 1 ] It typically results in warm, swollen, and painful joints. [ 1 ] Pain and stiffness often worsen following rest. [ 1 ] Most commonly, the wrist and hands are involved, with the same joints typically involved on both sides of the ...
Morning headaches. Insomnia. Anxiety. Depression. It’s difficult to notice the symptoms of sleep apnea at night. If you sleep with a partner, ask them to look out for signs of sleep apnea, like ...
Lead poisoning, also known as plumbism and saturnism, is a type of metal poisoning caused by lead in the body. [2] Symptoms may include abdominal pain, constipation, headaches, irritability, memory problems, infertility, and tingling in the hands and feet. [1]
The tsetse fly (genus Glossina) is a large, brown, biting fly that serves as both a host and vector for the trypanosome parasites. While taking blood from a mammalian host, an infected tsetse fly injects metacyclic trypomastigotes into skin tissue. From the bite, parasites first enter the lymphatic system and then pass into the bloodstream.
Head and neck cancer is a general term encompassing multiple cancers that can develop in the head and neck region. These include cancers of the mouth, tongue, gums and lips (oral cancer), voice box (laryngeal), throat (nasopharyngeal, oropharyngeal, hypopharyngeal), salivary glands, nose and sinuses. [5] Head and neck cancer can present a wide ...