Black or dark spots can be detected when someone undergoes imaging test that can include CT scans and MRIs. These dark spots, which are abnormal tissue matter, are referred to as a brain lesion, according to Mayo Clinic.... More » Health Pain & Symptoms

A white spot on a brain MRI, referred to as white matter or a brain lesion, shows an area of injury or disease, but can result in a number of diagnoses, according to the Mayo Clinic. The potential diagnoses range from ha... More » Health Conditions & Diseases

White spots on the skin, which can result from infections or hypopigmentation, have a number of causes and treatments that align with those causes. Over-the-counter creams may treat minor cases of white spots, but seriou... More » Health Conditions & Diseases Skin Conditions
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Benign tumors, cancerous tumors, abnormal fat accumulations, cysts and abscesses are all possible causes of spots observed on the liver during medical scans, according to the California Pacific Medical Center of the Sutt... More » Health Pain & Symptoms

Black stools in adults may be the result of bleeding in the upper part of the small intestine, the esophagus or the stomach, according to MedlinePlus. A person who is taking iron supplements, bismuth subsalicylate or bla... More » Health Pain & Symptoms

Black dots on the gums are caused by a variety of dental conditions, including bruising, pigmentation, plaque, tattooing caused by amalgam (silver) fillings and, rarely, a form of oral cancer, states Christopher Jacoby a... More » Health Pain & Symptoms

Black or brown spots between the teeth are a symptom of gum disease, reports Healthy Smiles. Gum disease starts as gingivitis and, if not treated, develops into periodontitis; however, black spots are a sign of periodont... More » Health Dental