Iodine has many uses. Here I collect some uses you may be interesting.

Prevention of Goiter: Lack of iodine could cause goiter. So, prevention of goiter is one of the most important iodine uses in the body. Iodine is often added to salt, to ensure sufficient intake of iodine.

Conjunctivitis: If a person is suffering from bacterial conjunctivitis, then a solution of povidone iodine is a effective treatment.

Cretinism: This is a congenital Iodine Deficiency Disease. In cretinism, the child suffers from mental illness and physical disabilities.

Breast Health: Iodine is considered very important for breast shape and health. It is found in breast milk. There is a lot research being conducted about the connection between iodine and breast cancer.

Ovarian Problems: Due to deficiency of iodine, many ovarian problems like ovarian cyst and cancer may be caused.

Eye Health: Iodine is used to treat eye infections, also iodine protects against UVB radiations.

Skin Health: Development of healthy skin, nails, hair and teeth, is one of the most important functions of iodine in the body.

Acne: Potassium iodide is used often for treating common skin problems like acne.

Antioxidant: Iodine is considered as important as vitamin C. One of the uses of iodine in the body is that it acts as an antioxidant in the blood.

Cancer: Some radioactive isotopes of iodine are used to destroy the thyroid damaging cancer cells. Many times a low iodine diet for thyroid cancer is prescribed.

IDD: Iodine is essential to prevent iodine deficiency diseases. Some results of IDD in pregnant women are stillbirths, miscarriages and other pregnancy related complications.

Cough Treatment: For treating cough problems, a cough mixture of potassium iodide aqueous expectorant is used.

Sterilization: iodine can be used for cleaning wounds.

Purification of Water: To clean impure water, iodine solution or tablets are often mixed with water, especially in emergency cases. The water is purified within 15 - 20 minutes.

We can see iodine is very important for human body health. However, body doesn't store iodine for long. So, regular supply of iodine to the body is essential. But over consumption of iodine might lead to side effects like diarrhea, fever, skin rashes and other iodine allergy symptoms.