Light brown spots on the skin may be café-au-lait spots or nevi, the scientific word for moles, explains Cleveland Clinic. Both are types of pigmented birthmarks. Te spots might also indicate neurofibromatosis. More »

WebMD states that vitiligo and pityriasis alba cause light patches on the skin. While people of any color can have these two conditions, it is most easily seen on dark skin. Pityriasis alba mostly occurs on the skin of b... More »

Brown spot treatments include prescription bleaching creams, medical procedures and over-the-counter creams, as listed by Healthline. Depending on the case, these treatments result in the reduction or permanent removal o... More » Beauty & Fashion Skin Care Skin Blemishes

Hyperpigmentation in the form of melasma, chloasma or age spots can cause light brown spots on the stomach and other areas of the skin, according to Kavi. Some lentigines and melasma spots can be caused by an over-produc... More »

Infections, as well as disorders such as sarcoidosis, Wegener's granulomatosis and rheumatoid arthritis, may cause spots on the lung, known as pulmonary nodules, according to Cleveland Clinic. Benign or malignant neoplas... More »

Red spots on the skin can be caused by a number of different conditions or illnesses. Some common causes of skin redness are inflammation, infection and sunburn, according to AARP. More » Health Pain & Symptoms

Chickenpox and hives are conditions that cause red spots on the skin, notes Mayo Clinic. Chickenpox is a contagious viral infection in which spots may cover the entire body, while hives is a skin reaction to things such ... More » Health Pain & Symptoms