There are red spots on my hands

Having red spots on the hands is a common phenomenon. Many times, we don’t know what causes them. Many people don’t take it seriously and think that the spots will go away after a couple of days. However, in most cases, the spots will not go away. At this time, you need to seek medical attention in time and use medication appropriately.

There are many reasons for red spots on the hands. Some people have eczema or dermatitis, some may have scabies, and some are caused by allergies. Especially for people with allergies, red spots will appear frequently on their hands in spring and when the seasons change. In addition, there are many times when the red spots on the hands will be very itchy, and you always want to scratch them. Here I remind everyone that if you have red spots, try not to scratch them with your hands. There are many invisible bacteria in the fingernails. If you scratch them, it will easily cause infection, which will increase the recurrence of red spots. Let me introduce the reasons for red spots on the hands.

Red spots appear on your hands

1. Eczema is an inflammatory reaction of the skin with polymorphic skin lesions and a tendency to exudation caused by a variety of complex internal and external factors. The cause of this disease is complex and difficult to determine. The subjective symptoms are severe itching, and the disease is prone to recurrence and may not be cured for many years.

2. Urticaria is a localized edema reaction caused by dilation and increased permeability of small blood vessels in the skin and mucous membranes, commonly known as "wheals". It is characterized by the appearance of white or red rashes on the skin, which occur suddenly, have no specific location, appear and disappear from time to time, and are extremely itchy, and disappear without leaving any traces.

3. Scabies is a skin disease caused by scabies infecting the skin (mechanical damage from digging tunnels and stimulation from their venomous juice secretion). It can be transmitted through sexual intercourse, especially among young men and women who engage in promiscuous sex. The disease spreads rapidly, so it has been listed as a sexually transmitted disease by the World Health Organization. The signs of scabies are intense itching of the skin, and the rash often occurs in the folds of the skin, especially in the pubic area. Scabies is a disease that is spread through close contact. Scabies is highly contagious and is often transmitted from one family to another or from one dormitory to another. Scabies can live outside the human body for 2 to 3 days. Therefore, using clothes, bedding, shoes, socks, hats, and pillowcases used by patients can also be indirectly transmitted. Sexual intercourse is undoubtedly a major route of infection.

4. Scabies is a tiny insect that is invisible to the naked eye. There are countless horizontal wavy wrinkles on the back of the scabies mite, several pairs of rod-shaped bristles and long bristles on the posterior half of the trunk, four pairs of legs on the abdomen, and the anus is in the center of the posterior edge of the trunk. The palate of scabies is very small, located at the front end of the trunk, half of which is sunken into the trunk. The chelicerae are pincer-shaped, which are suitable for eating the keratin of the skin. Parasitic in the human epidermis.

The life cycle of scabies is divided into four stages: egg, larva, nymph and adult. The eggs are oval, light yellow, with very thin and translucent shells. Often 4 to 6 eggs are gathered together and laid in the tunnel dug by the female insect. They also excrete feces while laying eggs, and after laying eggs, the adults die at the blind end of the tunnel.

The larvae hatch from the eggs and live in the tunnels. They soon shed their skin and become adults. After the female nymph mates with the male adult, the female lays eggs in the tunnel, laying eggs as she moves forward, digging tunnels 0.5 to 5 mm each day. If the migration speed is fast, the eggs are scattered in the tunnel; if the migration speed is slow, the eggs are densely packed in the tunnel. Another characteristic of scabies is that they are nocturnal and dormant during the day. Due to the increased activity of scabies at night, the skin often itches severely.

The main symptoms of scabies

(1) Paroxysmal severe itching at night.

(2) Tunnels dug by scabies can be seen in the seams of the hands. They are about 2 to 4 mm long and appear as gray-brown irregular curves. This is the trace left by scabies.

(3) The rash often occurs in areas with thin and tender skin, especially between the fingers, lower abdomen, breasts, armpits, groin, genitals, etc. The skin lesions are mainly millet-sized papules or papulovesicles.

(4) Scabies nodules. Pale red nodules the size of soybeans appear on the scrotum, penis, labia, groin, etc. These are scabies nodules. These nodules often persist for a long time and are often accompanied by severe itching.

Common symptoms of scabies patients

(1) Scratches and blood scabs: Scabies patients have severe itching and scratch unconsciously, which often leads to scratches and blood scabs on the skin.

(2) Secondary eczematous changes: Due to the irritation of the skin by the secretions of scabies and factors such as scratching, the skin will develop lesions such as erythema, papules, and blisters. This is secondary eczematous changes, which often aggravates the itching.

(3) Secondary infection: Due to scratching, poor hygiene, or hot weather and excessive sweating, the skin is prone to secondary infection, resulting in symptoms such as secondary impetigo and superficial lymphadenopathy.

(4) Secondary nephritis is caused by secondary infection of scabies. The secretions of scabies and bacterial infection can act as antigens on the human body, resulting in nephritis. Patients may feel fatigue, edema, back pain, etc.

5A rash is a skin lesion. There are many different manifestations, ranging from simple changes in skin color to raised bumps or blisters on the skin surface.

Types of rash

①The areas on the skin that are not raised are called spots. There are many manifestations of spots: erythema due to vascular dilation (scarlet fever, measles, drug rash, etc.), purpura due to subcutaneous bleeding, etc. Purpura is divided into small punctate hemorrhages or petechiae with a diameter of less than 5 mm and hemorrhagic spots or purpura with a diameter of more than 5 mm. These macules often change from red or purple to brown or yellow before finally disappearing. From the time the rash appears to disappear, it may take two weeks for some cases, or only 2-3 days for others. Changes in skin pigmentation are called pigmentation spots. In contrast to pigmentation, whitening of the skin is called leukoplakia, the representative of which is vitiligo (common leukoplakia).

②The raised areas on the skin surface are generally called papules, and the larger ones are called nodules. Blisters are clear fluid in the skin. The yellow turbid fluid is called a pustule.

The reasons for red spots on the hands are not the same. If the red spots on the hands are severe and the reaction is severe, you must seek medical attention in time. Also, keep your hands clean and dry, wash your hands frequently, do not apply cosmetics on your hands, and avoid cross-infection. This will allow your hands to recover faster.