Is itchy skin a sign of disease? Reminder: If itching matches these conditions, or is related to cancer

With the gradual warming of the temperature in various places, everyone finally felt the breath of spring.

　　However, after entering spring, not only does the air become drier, but there are also more and more substances in the air, including pollen, catkins and so on. Affected by foreign substances and dry weather, many people are prone to skin itching as soon as they enter the spring.

　　In fact, itchy skin is a very normal physiological manifestation, and its appearance is related to many reasons. In addition to the influence of climate and external substances mentioned above, if there is a skin disease, it will also be combined with itching symptoms. In addition, there are related studies that point out that inexplicable stubborn itching may also be a distress signal from cancer.

　　So the question is, which skin itching may be related to cancer?

1. The skin is yellow and itchy

Abnormal yellow discoloration of the skin, mucous membranes, and sclera in 　　adults is often a sign of jaundice induced by bilirubin metabolism disorders. Judging from the current clinical data , liver cancer, gallbladder cancer, bile duct cancer, pancreatic cancer compressing the common bile duct , etc., may cause jaundice .

　　While bilirubin is swimming in the blood, a large amount of bile salts will continue to deposit under the skin of the patient, which will stimulate the peripheral nerves, resulting in stubborn skin itching in the patient ;

2. Abnormal itching of the anus

　　In most cases, anal itching is related to perianal eczema. However, if there are sudden abnormal changes in the anus recently, such as a large amount of secretions, ulcers and pain in the anus , accompanied by intractable itching, this may be a signal of intestinal cancer , and it may release biological activity with intestinal cancer. Substances stimulate nerve endings .

　　In particular, anal itching combined with changes in stool habits, mixed bloody stools, changes in stool shape, abdominal pain and other symptoms should be vigilant and seek medical attention in a timely manner;

3. Neck itching

　　The cancer to be mentioned here is lymphoma. It should be known that although the lymphatic system is part of the immune system, lymphocytes may also become cancerous.

　　If you often feel itching in the neck for no reason recently, and you can feel a painless tumor with a hard texture, irregular shape, and unclear boundaries , this may be the manifestation of lymphoma;

　　4. Inexplicable itching all over the body

　　In addition to the types of malignancies listed separately above, there are many visceral malignancies that can cause pruritus. This itching may not be accompanied by any physical symptoms or skin manifestations. The patient just feels abnormal itching on the whole body, which cannot be relieved by changing clothes, applying medicine or taking a bath.

　　The reason for this is that during the continuous development of cancer, a large amount of special substances such as histamine, enzymes and carcinoembryonic proteins are produced , which may stimulate peripheral nerves . Moreover , malignant tumors may also trigger the body's immune response , causing symptoms similar to skin allergies .

　　Of course, the point to be emphasized here is that not all skin itching is associated with malignancy. Moreover, when malignant tumors appear itchy skin, they are often accompanied by other physical symptoms.

　　Moreover, there are many diseases that may also irritate the skin, such as diabetes, hyperthyroidism, etc. Therefore, everyone should analyze according to their actual situation. If itching has affected their life, timely medical examination is the first thing you should do.