For pregnancy to happen, a woman must be ovulatory with patent fallopian tubes and around the time of ovulation (midcycle)semen with good number of viable sperms must be deposited in vagina.

Irregular menstrual cycles, genital Infections, and increasing age are some of the signs of infertility in woman.

Tubal blockage, uterine tuberculosis, polycystic ovarian disease and poor ovarian reserve are some common causes of infertility in woman

Yes with latest ART techniques available infertility in females can be treated well.

To improve female infertility, woman should plan timely for pregnancy. Increased age of woman is a leading cause for infertility.They should get timely treatment for the genital infections. Lifestyle modifications like maintaining optimum weight and reducing mental stress level are also needed to optimise their fertility potential.

Poor semen parameters like low sperm counts , low motility and abnormal or bad quality sperms are the common male factors of infertility .Sometimes there is no sperms at all in the semen sample ( Azoospermia) . At times there can be sexual dysfunction, diabetes,obesity,steroid abuse etc

Yes , male infertility can be treatable using latest technology available nowadays. For mild male factor infertility, medical therapies of antioxidants and hormones can help . But for severe cases, ICSI is the best viable option .It may include sometimes surgical sperm  retrieval techniques like PESA , TESA, Micro TESE. For those who fail all these, donor sperm can be the last option.