Excess hair growth is a common symptom of hormonal imbalances. It can appear as increased facial and body hair, in both men and women. It usually starts with a slight increase in the amount of hair, and then progresses to a more noticeable amount of hair. It can manifest as thick, coarse hairs on the face, chest, back, and abdomen. It can also be accompanied by thinning of the scalp hair. Treatment options depend on the underlying cause of the excess hair growth.