It is normal for semen to be very thick, especially if you have not had sex for a long time, when the semen ejaculated will be thicker. Normal semen is jelly-like after ejaculation and will liquefy after a certain period of time and later become liquid. Thicker semen is good for keeping sperm with certain forward mobility. If there is no change for a long time after ejaculation and no liquefaction, this phenomenon is called semen non-liquefaction, which is definitely abnormal. You need to go to the hospital and have a semen routine analysis to see if the sperm count, vitality and malformation rate are normal. The poor quality of semen can be regulated with oral medications such as Wuzi Yanzong Pill, Kirin Pill, Vitamin E and Zinc Gluconate Oral Liquid, and it is also necessary to check if there are reproductive system diseases affecting semen quality, such as chronic prostatitis, testicular epididymitis, etc. If there are related diseases, they should be treated for the cause.