The surface of the thigh is uneven.

The uneven surface of the thigh may be caused by physiological factors, or it could result from conditions such as allergic dermatitis or urticaria. In such cases, timely medical evaluation is recommended, and treatment should be carried out under a doctor's guidance based on the underlying cause. Specific analyses are as follows:

1. Physiological Factors

This is commonly seen in individuals who are overweight. Due to uneven fat distribution, the skin surface may become irregular. Typically, there are no uncomfortable symptoms, and the condition improves with appropriate weight loss. No specific treatment is required.

2. Disease-Related Factors

1) Allergic Dermatitis

If the thigh area comes into contact with an allergen, a localized allergic reaction may occur, presenting as raised red patches accompanied by swelling, warmth, and itching. Under medical guidance, patients may apply topical treatments such as calamine lotion or compound acetic acid dexamethasone cream.

2) Urticaria

This is a common allergic condition. When it affects the thigh, it causes hives (wheals) on the skin, along with redness, swelling, and intense itching. Patients should take medications such as levocetirizine hydrochloride tablets or chlorpheniramine maleate tablets under a doctor’s supervision.

Besides the above common causes, other possible factors include tinea corporis (ringworm), varicose veins, or vascular malformations. Individuals experiencing any unusual local symptoms should seek prompt treatment to avoid delays in diagnosis and management.