BDSM and hard sex: safety rules for your health
Definition : BDSM and hard sex are safer with five rules: negotiated consent, a safeword, listening to your body, sobriety and a safe setting; some practices (choking, sounding, trampling) need specific precautions.
- Keywords
- BDSM, SM, hard sex, safeword, bondage, aftercare, edgeplay
- Topics
- Sexual Health & Prevention
- Updated

The 5 basic rules
Sexosafe (Santé publique France) sums up “safe” hard sex in five rules:
- Consent is essential: say clearly what you want and don’t want, beforehand.
- A safeword: an agreed word or gesture that stops everything, immediately, even mid-scene. If gagged, use a gesture (drop an object, tap three times).
- Listen to your body: pain is a signal to respect; go at your own pace.
- Avoid drugs: they raise the risk of injury and unwanted escalation.
- A safe setting: place, partner, and someone who knows where you are if it’s a first meeting.
With a partner met online
Sexosafe advises discussing limits beforehand, especially with app partners, and possibly doing a softer trial session. For beginners, the ideal is an experienced, sober partner who stays in control. The sub must always be able to ask for a pause or a stop.
Precautions by practice
- Bondage: watch circulation (cold, blue or tingling fingers = loosen); keep blunt-tip shears within reach; never leave a tied-up person alone.
- Choking / breath play: Sexosafe advises against it except between very experienced partners; the risk of serious injury is high and loss of consciousness can happen without warning (erotic asphyxiation).
- Urethral sounds: triple disinfection (sound, glans, hands), suitable lube, never an improvised object.
- Trampling: only on tensed abs, never on ribs or pelvis; mind the weight difference.
- Impact (whip, cane, paddle): aim for fleshy areas (buttocks, thighs), avoid kidneys, spine, neck, joints.
- Fisting and stretching: plenty of lube, protection, stop if it hurts (fisting).
- Blood: sterile equipment, gloves, one tool per person (blood play).
- Gang bang: condoms/PrEP/TasP, generous lube (group sex).
After the session
- Clean and disinfect wounds straight away; for internal anal injuries, see a proctologist (Sexosafe).
- Aftercare: Sexosafe reminds us that dominance doesn’t rule out tenderness. Cuddles, water, sugar, a blanket, talking about the scene. The emotional “drop” the next day is common: check in.
And STIs?
BDSM is no “dirtier” than anything else, but practices involving blood, fluids or shared toys expose you to hepatitis and STIs. Vaccines (hepatitis A and B), PrEP and regular testing remain the basics.
Informational article based on official sources. It does not replace medical advice: if in doubt, if you have symptoms or took a risk, see a health professional or a sexual health clinic.
Sources
Figures and recommendations checked against:
- Santé publique France (Sexosafe) — Pratiquer le sexe hard en restant safe
- Santé publique France (Sexosafe) — BDSM entre hommes : attache-moi !
- CATIE — Other activities and the chances of getting/passing STIs