White spots on a woman's calf

In daily life, white spots on the body are a very common condition. Some people have white spots on their necks, some have white spots on their arms, and some have white spots on their calves, etc. White spots on the skin can occur on everyone, both men and women. Many women have many white spots on their calves. What is the reason for this?

What is the reason for white spots on women’s calves?

1. Vitiligo

Vitiligo is a common acquired skin depigmentation disease. The surface of the leukoplakia wound is smooth without white flakes, the color is light white or milky white, the edge melanin is increased compared to normal skin, and the hair inside the leukoplakia is normal or the skin is white. The lesions are more common in areas exposed to sunlight and damaged by friction, and the lesions are often distributed symmetrically. Vitiligo is often arranged in strips according to the distribution of nerve fiber segments. In addition to skin damage, the lips, vulva, glans penis and the mucous membranes inside the foreskin are also often affected. This disease is mostly asymptomatic, and a very small number of patients have itching in the injured area before or during the onset of the disease. There is no significant difference in the gender of patients. The disease can occur in people of all ages, but it is more common in adolescents and children.

2. Pityriasis versicolor.

Pityriasis versicolor, also known as pityriasis versicolor, is a chronic disease with generally no active symptoms. The disease is characterized by scattered or combined hypopigmented or hyperpigmented macules with bran-like scaling, which are more common on the chest, back, arms, armpits, and sometimes spread to the face. The initial damage is a circular maculopapular rash tightly surrounding the skin pores, which then gradually rises to the size of a nail plate with clear edges. Adjacent positions can combine to form irregular large areas, and new macules appear around them. The surface is covered with a small amount of easily detached bran-like desquamation, ranging from dark gray, dark brown to yellow-brown, and sometimes multiple colors coexist, shaped like spots. The spots appear as light gray after a long time.

3. Simple pityriasis.

This disease is also known as pityriasis alba. Typical skin lesions are dark red ring-shaped or oval spots with blurred edges, with a diameter of 0.5 to 2.0 cm or larger. After a few weeks, the pale red spots slowly change into pale white spots, covered with a small amount of bran-like desquamation. The number of lesions is uncertain, mainly distributed on the face, and sometimes also common in other parts of the body. There are no active symptoms, or there is itching or burning sensation. The current medical history varies in length, aggravated in summer, but can disappear naturally.

4. No pigmented mole.

Also known as depigmented nevus, it is a rare, congenital, localized white spot disease. If it occurs at birth or shortly after birth, vitiligo may expand in proportion as the body grows. Melanin in the depigmented area is not easily regenerated, so it cannot disappear naturally. Lesions are most common on the trunk, lower abdomen, proximal extremities, and may also affect the face and neck. If the damage occurs in the trigeminal nerve area, it may be accompanied by neurological symptoms and epilepsy. There is no reasonable drug treatment for this disease at this stage. If it is for the purpose of beauty and skin care, the lesions on the exposed parts can be covered. As an adult, autologous skin transplantation can be performed.

5. Refractory macular hypopigmentation spots.

That is, refractory macular hypomelanosis, which is mostly distributed in exposed areas such as the limbs, face and trunk. The symptoms are milky white spots, 2 to 6 mm in diameter, sometimes larger, with irregular shapes, round or polygonal, and the incidence rate increases with age. Because this disease has little effect on beauty and skin care, no treatment is required; to prevent this disease, you should avoid sunlight.

FAQ: Early detection, early diagnosis and early treatment are the keys to curing vitiligo. If patients with vitiligo can receive scientific treatment in time after the onset of the disease and pay close attention to medical care in daily life, the recovery of vitiligo skin will be more effective.