Low sperm count can affect fertility, while penis size during erection is usually normal and varies from person to person. Focus on a healthy lifestyle by avoiding smoking, alcohol, and stress, and maintaining a balanced diet with regular exercise. Getting enough sleep and maintaining a healthy weight can also support reproductive health. Consult a doctor for proper evaluation and guidance.

A sperm motility of 45% is slightly below optimal but can often improve with healthy lifestyle changes. Eat a balanced diet rich in antioxidants (fruits, nuts, leafy vegetables), exercise regularly, maintain a healthy weight, avoid smoking and alcohol, and reduce stress. Consult a doctor for further evaluation and possible supplements if needed.

A zero sperm count may be due to a blockage in the reproductive tract, hormonal problems, genetic causes, or past infections. Please see a urologist or fertility specialist for further tests and to discuss possible treatments such as surgical sperm retrieval or hormone therapy.