Swimming should be avoided for at least 3–4 weeks after a hair transplant. Chlorine in pools and salt in seawater can irritate healing grafts and increase infection risks. Water pressure can also disturb newly implanted follicles if entered too soon. With techniques like DSHI, grafts are more secure during the healing phase, but surgeons still recommend waiting to ensure proper recovery. After the initial month, swimming is usually safe as long as the scalp is fully healed. Patience ensures maximum graft survival and protects your investment in natural, permanent results.