A dark ring around the neck can be a symptom of insulin resistance, warns the National Institute of Health. Known as acanthosis nigricans, the dark patches of skin can also appear on the back of the neck, armpits, elbows, knees and knuckles.Know More
Acanthosis nigricans appears most often in people who are obese or have type 2 diabetes, says Mayo Clinic. It afflicts Native Americans, Hispanics and African-Americans most. The skin becomes thicker and velvety in texture, and may produce a strong odor. Some patients have reported that the area itches. The changes are very gradual, developing over the course of months or years. Rarely, acanthosis nigricans is a symptom of cancer. The darkened skin folds indicate a cancerous tumor growing in an organ, usually the stomach, liver or colon. Acanthosis nigricans can also be hereditary.
While insulin resistance has few symptoms, when the condition becomes severe people are more likely to develop acanthosis nigricans, warns the National Institute of Health. It is known as one of the physical risk factors that the American Diabetes Association recommends testing for.
To treat acanthosis nigricans, Mayo Clinic recommends losing weight, taking medications, removing any cancerous tumors, and using a topical antibiotic or soap to remove odor. Laser therapy may also help reduce the skin's thickness, improving the appearance.Learn more about Pain & Symptoms
The appearance of white spots on the skin is one of the main symptoms that occurs in the early stages of lichen sclerosis, according to the National Institute of Arthritis and Musculoskeletal and Skin Diseases. These white spots first appear smooth and shiny and later expand in size and become wrinkled and thin. Areas of the skin affected by these symptoms are more prone to bruising and tearing and will generally itch and feel painful.Full Answer >
"Pins and needles," also known as paresthesia, is caused by prolonged pressure on a particular nerve, states the National Institute of Neurological Disorders and Stroke. Temporary paresthesia in the left arm is typically caused by putting pressure on a nerve in or connected to the left arm.Full Answer >
Shaky hands in young people can be caused by a neurological disorder or can be a side effect of taking certain types of prescription medications or illegal drugs, as stated by the National Institute of Neurological Disorders and Stroke. Neurological disorders that have been known to cause shaky hands include multiple sclerosis, stroke, traumatic brain injury and also neurodegenerative diseases that damage parts of the brain, such as the cerebellum. Drugs, like amphetamines and corticosteroids, mercury poisoning, liver failure and alcohol abuse or withdrawal can also cause shaky hands in young people.Full Answer >
Burning knee pain may be caused by iliotibial band syndrome, which is a condition that results when a band of tissue rubs over the lateral condyle, according to the National Institute of Arthritis and Musculoskeletal and Skin Diseases. It is usually caused by long-term overuse of the knee.Full Answer >