Sperm weakness is not a medical terminology. Your question needs some clarification. My perception about sperm weakness is reduced sperm count and reduced sperm motility. Both problems can be due to deficiency of testosterone, malnutrition, urinary tract infection, inflammation of testis or orchitis, and hernia.
Treatment depends upon underlying cause. If you are free from any physical illness and testosterone deficiency then malnutrition can be cause. So, visit to a doctor for proper diagnosis and treatment.
Treatment depends upon underlying cause. If you are free from any physical illness and testosterone deficiency then malnutrition can be cause. So, visit to a doctor for proper diagnosis and treatment.