Hypertrichosis is an uncommon disorder characterized by an abnormal and excessive growth of hair that does not conform to the typical patterns observed in individuals of a specific gender, age, or ethnic background. There are different types of hypertrichosis, each exhibiting distinct patterns of hair growth. Due to its rarity, the underlying mechanisms of this condition remain largely unknown, and ongoing research is being conducted to gain a better understanding.
Causes of Hypertrichosis
Hypertrichosis can manifest as a congenital condition caused by genetic abnormalities or can be acquired later in life. While the exact causes of hypertrichosis remain unclear, experts have put forward various theories to explain its development. Some congenital forms are believed to result from the reactivation of dormant genes that were responsible for promoting hair growth in our early ancestors. On the other hand, certain types of hypertrichosis are caused by genetic mutations. The acquired forms of hypertrichosis have a wider range of causes, as they can be triggered by various factors.
Signs and Symptoms
Hypertrichosis is a condition characterized by excessive hair growth, which is the primary symptom across all its forms. However, each form of hypertrichosis may present with additional signs and symptoms. One common symptom is the delayed eruption of teeth, which can cause tooth-related issues for some individuals. Hearing problems, ranging from mild impairment to complete deafness, can also be associated with hypertrichosis. Additionally, areas affected by excessive hair growth often exhibit changes in skin pigmentation.