Skin swelling, also known as edema, occurs when fluid accumulates in the tissues, leading to a noticeable increase in the size or puffiness of the affected area. There are various causes of skin swelling, including:

• Injury or Trauma: Bruising, sprains, strains, or any kind of physical injury can result in swelling as part of the body’s natural inflammatory response.
• Allergic Reactions: Allergies to foods, medications, insect bites, or other allergens can cause localized swelling or even widespread swelling known as angioedema.
• Infections: Skin infections, such as cellulitis or abscesses, can lead to swelling in the affected area. Infections might be bacterial, viral, or fungal in nature.
• Inflammatory Conditions: Conditions like dermatitis, eczema, or psoriasis can cause swelling and inflammation in the skin.
• Underlying Medical Conditions: Certain medical conditions, such as heart failure, kidney disease, liver disease, or hormonal imbalances, can lead to generalized edema affecting the skin.
• Fluid Retention: Sitting or standing for extended periods, especially in hot weather, can lead to fluid accumulation in the lower legs and ankles due to poor circulation.

If you experience sudden or severe swelling, especially if accompanied by difficulty breathing, chest pain, or other concerning symptoms, seek immediate medical attention as it could indicate a serious allergic reaction or underlying health emergency. Always consult with a healthcare professional to determine the cause of skin swelling and appropriate treatment.