THE SHORT ANSWER
Blot up the excess with a clean white cloth. Do not rub.
Why coloured cotton changes the answer
Coloured cotton needs a dye-transfer check. Even a cleaner that removes a stain may lighten the garment, so start with a hidden seam test. Blood is a protein-based stain, so cooler water is a sensible first move.
A careful step-by-step approach
- 1
Use cool water first
Flush from the reverse of the fabric with cool water. Do not use hot water on fresh blood.
- 2
Choose a fabric-safe pre-treatment
Use a laundry detergent or enzyme stain remover only if its label permits the fabric. Follow product contact time, then rinse well.
- 3
Launder, then inspect
Wash using the garment’s care label and the cleaner’s instructions. Wash with similar colours. Do not use bleaching agents unless both the garment care label and cleaner label allow them. Check the mark before drying; repeat a compatible treatment if needed. Air-dry until it is gone.
What not to do
- Do not use hot water as the first step for fresh blood.
- Do not mix bleach with vinegar, ammonia or other cleaning products.
- Do not skip a hidden-area colourfastness test when using a cleaner.
What if it already dried?
For blood that may be infectious, use protective precautions; do not handle another person’s blood without appropriate protection. A dried stain can require different handling and may be less responsive to treatment. Our tool generates a separate plan that accounts for timing while preserving the same material safeguards.
Sources and care guidance
These directions are a conservative synthesis of published care resources—not a claim that we have tested this item. The item's actual care label and maker directions take priority.
- American Cleaning Institute: Stain Removal Guide — garment treatment and drying precautions
- GINETEX: ISO 3758:2023 care-label symbols explained
- CDC: Cleaning-chemical safety — do not combine cleaners