Generally following the doctor’s advice to take keel bone and oyster will not hurt the sperm. 1. Dragon’s Bone: used to treat palpitations, insomnia and dreaming, spontaneous sweating (involuntary sweating during the day, aggravated by a little movement sweating), night sweating (abnormal sweating after going to sleep, sweating stops after waking up), spermatorrhea, leucorrhoea, and menorrhagia (excessive menstruation or more than one drop of menstruation). Dampness and heat stagnation should be taken with caution. 2. Oyster: used in treating restlessness of heart and mind, palpitation and insomnia, phlegm nuclei (lumps swollen up like nuclei under the skin), gall tumors (equivalent to thyroid tumors), scrofula (mainly refers to tuberculosis of cervical lymph nodes), impedimenta (tangible or intangible lumps appearing in the abdomen, with a feeling of distension and pain), spontaneous sweating, night sweating, seminal emission, etc. It is contraindicated in cases of constipation. Contraindicated for constipation. Contraindicated for those who are allergic to oyster. If you need to use Dragon’s Bone and Oyster, you must use it under the guidance of a professional doctor.