Cuts, scratches, bites, abscesses, skin ulcers, oral lesions or other wounds that do not improve progressively, reopen, discharge material, smell unpleasant, or are associated with pain, fever, lethargy, weight loss or reduced appetite need prompt veterinary assessment.
Delayed healing can be linked to local infection, foreign bodies, ongoing trauma, dental disease, metabolic disorders, tumours or immune-system changes. Where risk factors or compatible clinical signs are present, the veterinarian may request a blood count, biochemical profile and targeted tests for infections transmissible between cats, including FeLV and FIV.
Avoid the generic expression “sexually transmitted diseases”: for cats it is more accurate to talk about infections transmissible between cats, noting that FIV is mainly spread through deep bites, while FeLV often requires close and prolonged contact. Do not give antibiotics, corticosteroids or human-use disinfectants without veterinary prescription.