Seborrhoeic keratoses are common, often brown to black but sometimes skin coloured, scaly or rough spots which can be raised or flat. They are found on the superficial part of the skin and hence often have a "stuck on the skin" appearance. They are found in increasing numbers as your age increases. They are very uncommon in the first decade of life. However, despite commonly referred to as "age warts", they are not viral warts and can occur in young adults. Because they can appear very suddenly and grow relatively quickly, seborrhoeic keratoses can be difficult for patients to be certain of their harmless nature. However they are benign and do not require treatment. However, like all skin spots, if they suddenly increase in size they should be reviewed by your doctor.