What causes small red spots on the skin?

Apr 24, 2023 Source: Cainiu Health

Dr. Liu Wan

Introduction

Small red spots on the skin may be caused by physiological factors, capillary bleeding, or other reasons. The appearance of small red spots on the skin can result from various factors, among which physiological conditions, skin capillary hemorrhage, and spider angiomas may all be potential causes. If these small red spots frequently appear on the skin or if changes in skin color are not obvious, it is advisable to promptly seek medical evaluation and treatment from a healthcare professional.

Small red spots on the skin may be caused by physiological factors, capillary bleeding, spider angiomas, and other reasons. Details are as follows:

1. Physiological Factors

Physiological factors are one of the main causes of small red spots on the skin. These include excessive physical fatigue, exposure to extreme heat or cold, intense exercise, or rest following strenuous physical activity. In these situations, the capillaries in the skin may dilate, resulting in the appearance of small red spots.

2. Pathological Factors

1) Capillary Bleeding

Capillary bleeding in the skin, also known as purpura, occurs when blood leaks out due to damage to the blood vessel walls. Common diseases such as vasculitis, thrombocytopenic purpura, aplastic anemia, amyloidosis, and certain types of leukemia can all lead to the appearance of small red spots on the skin.

2) Spider Angioma

A spider angioma is a bothersome, spider-like raised red spot, named for its distinctive appearance. Spider angiomas can appear on various parts of the body, commonly on the front of the chest and neck. They are primarily caused by vascular changes due to elevated levels of circulating hormones. Increased hormone levels may result from conditions such as malignant tumors, liver dysfunction, or pregnancy.

In summary, small red spots on the skin can arise from various causes, including physiological factors, capillary bleeding, and spider angiomas. If small red spots frequently appear on the skin or if there are noticeable but subtle changes in skin color, it is advisable to promptly consult a medical professional for diagnosis and treatment.

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