Hair growth occurs on the scalp, face and other parts of the female body. Controlled by a delicate balance of male and female hormones, several factors affect the amount and speed of hair growth in women. If you suspect excessive hair growth, discuss your concerns with your doctor to determine the cause of the problem.
Normal Hair Growth
The normal hair growth cycle consists of the growth phase, degradation phase and resting phase. The growth periods last from two to eight years, according to the International Society of Hair Restoration Surgery. After this growth, the follicle breaks down during a period of two to four weeks. The resting period lasts from two to four months.
Tumors
Tumors of the ovaries and adrenal glands cause the female body to produce too much male hormone (known as androgens). The male hormone stimulates excessive hair growth and may also cause the voice to deepen. Surgical removal of the tumor reduces the amount of male hormone produced, resulting in the production of less hair.
Medications
Some medications stimulate hair growth, particularly those that affect the hormones of the female body. The National Institutes of Health reports that danazol, anabolic steroids, minoxidil and cyclosporine increase hair growth in women. If your doctor suspects that your hair loss occurred because of one of these medications, she will change the dosage of your medication or find an alternative that does not lead to excessive hair growth.
Polycystic Ovary Syndrome
Polycystic ovary syndrome (PCOS) results in the growth of cysts on the ovaries. This condition also increases the amount of hair that grows on the chest, face, thumbs, back, stomach and toes. Increased hair growth accompanies other symptoms of PCOS, which include acne, infertility, irregular menstrual periods, oily skin, obesity, darkening of the skin, male-pattern baldness, skin tags, pelvic pain, sleep apnea and thinning hair.
Excess Androgen Production
When the female body produces too much male hormone (androgens), it stimulates the androgen-sensitive hair follicles and sebaceous glands, resulting in increased hair growth. The American Academy of Family Physicians reports that 60 percent to 80 percent of women with excessive hair growth have increased levels of circulating male hormones.
Cushing’s Syndrome
Cushing’s syndrome occurs as the result of high cortisol levels in the body. Obesity, Type 2 diabetes, poorly managed blood sugar levels and high blood pressure increase the risk for this condition, according to the National Endocrine and Metabolic Diseases Information Service. This syndrome causes excess hair to grow on the abdomen, chest, face, thighs and neck.
About this Author
Leigh A. Zaykoski began working as a freelance writer in 2004. Her medical content has appeared on dozens of websites and in professional association newsletters. Zaykoski attended the University of Pittsburgh and Keystone College, studying microbiology and business administration. She is currently pursuing a medical writing certification.
