How do I know if a wound is infected?

Signs that a wound may be infected include increasing redness, swelling, or pain around the wound, the area feeling warm, pus or discharge coming from the wound, a high temperature, and red streaks spreading from the wound. If you notice any of these signs, see your GP urgently or go to a minor injuries unit. Infected wounds can become serious if not treated with antibiotics.

Based on your description — redness, swelling, and warmth at 3 days — this wound may be infected and you should see a GP or walk-in centre today, not tomorrow. Red streaks spreading up your arm or a high temperature mean go to A&E immediately. Also make sure this was recorded in your workplace accident book and check when your last tetanus vaccination was.

This is an important infections question. We recommend speaking with your GP for personalised advice. You can also contact NHS 111 (free, 24/7) for urgent guidance, or visit nhs.uk for trusted health information. Please note: this is general health information, not a substitute for professional medical advice.