In children, the symptoms are most often caused by the androgens (male-type hormones) that the tumor might secrete. The most common symptoms are excessive growth of facial and body hair (such as in the pubic and underarm area). The male hormones may also cause enlargement of the penis in boys or the clitoris in girls. If the tumor secretes estrogens (female-type hormones), it can cause girls to start puberty early. This can cause the breasts to develop and menstrual periods to start. In boys, estrogen-producing tumors may cause breast enlargement. In adults, the symptoms from high levels of sex.
