What causes the skin to become itchier when scratched?
Apr 02, 2024
Source: Cainiu Health
Dr. Wang Xiaoyan
Introduction
Itching that worsens with scratching may be caused by dry skin, medication side effects, allergies, hyperthyroidism, diabetes, and other factors. It is recommended to seek medical attention promptly and receive appropriate treatment under a doctor's guidance. In daily life, it is advisable to consume more foods rich in protein, various vitamins, minerals, and other nutrients—such as eggs, lean meat, tomatoes, apples—to help meet the body's energy needs.
Generally, worsening itchiness due to scratching may be caused by dry skin, medication side effects, allergies, hyperthyroidism, diabetes, and other factors. It is recommended to seek medical attention promptly and receive targeted treatment under a doctor's guidance. Specific analysis is as follows:
1. Dry Skin
Dry skin may become thin and fragile, making nerve endings more susceptible to stimulation. When the skin is scratched, it may trigger itching sensations. This can be alleviated by drinking plenty of water, using a humidifier, and applying moisturizing lotions or creams.
2. Medication Side Effects
If a person is taking certain medications, some drug components may cause blood vessel dilation, increasing skin sensitivity and resulting in itching that worsens with scratching. Symptoms may be relieved by switching medications or adjusting dosages.
3. Allergies
Allergies are excessive immune responses triggered by the body's immune system upon exposure to allergens. Contact with allergens such as pollen, dust mites, or pet dander may provoke allergic reactions leading to skin itching. Patients may follow medical advice to take antihistamines such as loratadine tablets, levocetirizine hydrochloride tablets, or ebastine tablets for treatment.
4. Hyperthyroidism
Hyperthyroidism refers to excessive secretion of thyroid hormones. During disease flare-ups, it may affect hair follicle function, leading to folliculitis or excessive sweating, both of which can cause skin itching. Under medical supervision, patients may use medications such as Jiaxiong Ling tablets, methimazole tablets, or propylthiouracil tablets for treatment.
5. Diabetes
Diabetes is a metabolic disorder. During acute phases, it may lead to microvascular complications that impair blood supply to the skin, causing dryness, compromised skin barrier function, and increased sensitivity to irritants, resulting in itching. Under medical guidance, patients may use medications such as insulin aspart injection, glimepiride capsules, or metformin hydrochloride tablets for management.
In daily life, it is recommended to consume foods rich in protein, vitamins, and minerals—such as eggs, lean meat, tomatoes, and apples—to provide essential nutrients and help maintain overall health.
