What should I do about excessive hair on my arms?

In general, excessive hair on the arms may be caused by genetic factors, hormonal changes, aging, adrenal cortical hyperplasia, or hypothyroidism. Treatments such as medication, ice-point hair removal, laser hair removal, and photonic hair removal can be used under the guidance of a doctor. Specific analyses are as follows:

1. Genetic Factors

Genetics play a significant role in hair growth. In certain families, individuals may naturally have thicker arm hair. In such cases, dense hair is a natural phenomenon and typically does not require special treatment. Daily care should focus on keeping the skin dry and clean. Alternatively, ice-point hair removal can be performed under professional guidance. This method uses low-temperature technology to deactivate hair follicles and surrounding stem cells, achieving hair removal. The reference cost is generally 2,000–3,000 yuan per session. Symptoms usually improve within 3–4 months, although side effects such as redness and itching may occur.

2. Hormonal Changes

Hormonal fluctuations during puberty, pregnancy, or menopause may lead to increased arm hair. It is advisable to use mild, non-irritating skincare products to avoid skin irritation. Laser hair removal can also be performed under a doctor’s recommendation. This method uses specific wavelengths of laser energy to damage hair follicles at the root, which are then naturally metabolized and expelled from the body. The reference cost ranges from 1,000 to 8,000 yuan per session. Improvement is typically seen within about 15 days, but possible side effects include bleeding and infection.

3. Aging

As people age, skin aging leads to declining follicular function, affecting hair growth and resulting in thicker-looking arm hair. Maintaining healthy skin and using anti-aging skincare products is important. Photonic hair removal can also be conducted under the supervision of a qualified physician. This method primarily uses photothermal principles to destroy the structure of hair follicles, eliminating their regenerative capacity. The reference price is approximately 1,000–8,000 yuan per session. Improvement is generally observed within about 7 days, though swelling and allergic reactions may commonly occur.

4. Adrenal Cortical Hyperplasia

Adrenal cortical hyperplasia may result from long-term smoking, poor diet, or drug side effects, leading to excessive secretion of adrenal cortical hormones, which in turn affects hair growth and causes hirsutism. This condition may be accompanied by symptoms such as skin pigmentation and high blood pressure. Patients should follow medical advice and may be prescribed medications such as hydrocortisone tablets, prednisone acetate tablets, or cyproterone acetate tablets for treatment.

5. Hypothyroidism

Hypothyroidism is a condition that may be caused by genetic factors or weakened immune function. It can slow down metabolism, impair follicular function, and consequently lead to abnormal hair growth. Common symptoms include fatigue, weight gain, and dry skin. Patients may take medications such as levothyroxine sodium tablets, thyroid tablets, or dibazol tablets under a doctor's guidance to improve the condition.

It is recommended to visit a reputable medical institution and undergo the above treatments under the guidance of a qualified physician to ensure safety and effectiveness. Areas with thick hair are more susceptible to UV damage; therefore, sun protection measures such as applying sunscreen and wearing hats should be taken when going outdoors.