Ota nevus is blue, brown, black or mixed color patches and spots distributed around the orbit. In severe cases, it can be brown, blue-brown or blue-black pigment spots on one or both sides. This disease has a family history. Most nevus of OTA are born or shortly after birth. Some patients are delayed, or onset occurs during adolescence or after childbirth or trauma. Some patients can get sick after 35 years old. But no matter when it grows, its properties are the same, and there is no difference. For patients who have nevus of OTA at birth or shortly after birth, nevus of OTA will fluctuate once when they are 4-5 years old and 12- 14 years old, that is, during this period, nevus of OTA will grow up, or the color will become dark and stable in the future. For patients with nevus of OTA in the future, nevus of OTA usually grows at the age of 4-5 or 12- 14. Of course, some patients later developed nevus OTA. The color of Ota's nevus can change with the seasons, for example, it is darker in summer and lighter in winter, and emotions also have an influence on the color.
The harm of Ota nevus to human body is mainly cosmetic problem. The nevus of OTA is prone to face, especially adolescent girls, which often brings great pain to patients and has adverse effects on their normal life, social interaction, employment and psychology. In addition, there are reports of nevus of OTA complicated with choroidal and iris malignant melanoma and malignant blue nevus at home and abroad. Because malignant melanoma and malignant blue nevus are highly malignant, although the incidence rate is extremely low, it should also attract everyone's attention.
There will be no complications in the laser treatment of nevus of OTA, but there will be some reactions during the treatment, such as redness, swelling, scabbing and peeling. Some patients may also have blisters. These conditions are normal reactions and can be completely recovered.