The main symptoms of scalp psoriasis include abnormal dandruff and erythema on the scalp, often accompanied by itching. If you observe similar symptoms, it is recommended to seek medical attention promptly for a definitive diagnosis and pay attention to daily scalp care.

The specific symptoms can be categorized as follows:

1. Increased dandruff: The scalp easily produces a large amount of silvery-white or grayish-white scales. The dandruff falls off noticeably when combing or scratching the hair, and is sometimes mistaken for ordinary dandruff.
2. Erythema and plaques: Well-defined red plaques may appear on the scalp, often covered with scales, and the local skin may be thickened.
3. Itching and discomfort: The affected area often experiences mild to moderate itching, and scratching may worsen the skin lesions or cause bleeding.
4. Other manifestations: In some people, the rash may affect the hairline, behind the ears, and other areas. In severe cases, the hair may become temporarily thin, but it usually does not directly lead to permanent hair loss.
For daily hair care, it is recommended to choose gentle shampoos and avoid vigorously scratching the scalp. Maintaining a regular sleep schedule and reducing stress can also help alleviate symptoms. If symptoms persist or worsen, please seek proper treatment under the guidance of a doctor.